critical thinking requires a view of the situation

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What is Critical Thinking?

Critical thinking is the ability to think clearly and rationally, understanding the logical connection between ideas.  Critical thinking has been the subject of much debate and thought since the time of early Greek philosophers such as Plato and Socrates and has continued to be a subject of discussion into the modern age, for example the ability to recognise fake news .

Critical thinking might be described as the ability to engage in reflective and independent thinking.

In essence, critical thinking requires you to use your ability to reason. It is about being an active learner rather than a passive recipient of information.

Critical thinkers rigorously question ideas and assumptions rather than accepting them at face value. They will always seek to determine whether the ideas, arguments and findings represent the entire picture and are open to finding that they do not.

Critical thinkers will identify, analyse and solve problems systematically rather than by intuition or instinct.

Someone with critical thinking skills can:

Understand the links between ideas.

Determine the importance and relevance of arguments and ideas.

Recognise, build and appraise arguments.

Identify inconsistencies and errors in reasoning.

Approach problems in a consistent and systematic way.

Reflect on the justification of their own assumptions, beliefs and values.

Critical thinking is thinking about things in certain ways so as to arrive at the best possible solution in the circumstances that the thinker is aware of. In more everyday language, it is a way of thinking about whatever is presently occupying your mind so that you come to the best possible conclusion.

Critical Thinking is:

A way of thinking about particular things at a particular time; it is not the accumulation of facts and knowledge or something that you can learn once and then use in that form forever, such as the nine times table you learn and use in school.

The Skills We Need for Critical Thinking

The skills that we need in order to be able to think critically are varied and include observation, analysis, interpretation, reflection, evaluation, inference, explanation, problem solving, and decision making.

Specifically we need to be able to:

Think about a topic or issue in an objective and critical way.

Identify the different arguments there are in relation to a particular issue.

Evaluate a point of view to determine how strong or valid it is.

Recognise any weaknesses or negative points that there are in the evidence or argument.

Notice what implications there might be behind a statement or argument.

Provide structured reasoning and support for an argument that we wish to make.

The Critical Thinking Process

You should be aware that none of us think critically all the time.

Sometimes we think in almost any way but critically, for example when our self-control is affected by anger, grief or joy or when we are feeling just plain ‘bloody minded’.

On the other hand, the good news is that, since our critical thinking ability varies according to our current mindset, most of the time we can learn to improve our critical thinking ability by developing certain routine activities and applying them to all problems that present themselves.

Once you understand the theory of critical thinking, improving your critical thinking skills takes persistence and practice.

Try this simple exercise to help you to start thinking critically.

Think of something that someone has recently told you. Then ask yourself the following questions:

Who said it?

Someone you know? Someone in a position of authority or power? Does it matter who told you this?

What did they say?

Did they give facts or opinions? Did they provide all the facts? Did they leave anything out?

Where did they say it?

Was it in public or in private? Did other people have a chance to respond an provide an alternative account?

When did they say it?

Was it before, during or after an important event? Is timing important?

Why did they say it?

Did they explain the reasoning behind their opinion? Were they trying to make someone look good or bad?

How did they say it?

Were they happy or sad, angry or indifferent? Did they write it or say it? Could you understand what was said?

What are you Aiming to Achieve?

One of the most important aspects of critical thinking is to decide what you are aiming to achieve and then make a decision based on a range of possibilities.

Once you have clarified that aim for yourself you should use it as the starting point in all future situations requiring thought and, possibly, further decision making. Where needed, make your workmates, family or those around you aware of your intention to pursue this goal. You must then discipline yourself to keep on track until changing circumstances mean you have to revisit the start of the decision making process.

However, there are things that get in the way of simple decision making. We all carry with us a range of likes and dislikes, learnt behaviours and personal preferences developed throughout our lives; they are the hallmarks of being human. A major contribution to ensuring we think critically is to be aware of these personal characteristics, preferences and biases and make allowance for them when considering possible next steps, whether they are at the pre-action consideration stage or as part of a rethink caused by unexpected or unforeseen impediments to continued progress.

The more clearly we are aware of ourselves, our strengths and weaknesses, the more likely our critical thinking will be productive.

The Benefit of Foresight

Perhaps the most important element of thinking critically is foresight.

Almost all decisions we make and implement don’t prove disastrous if we find reasons to abandon them. However, our decision making will be infinitely better and more likely to lead to success if, when we reach a tentative conclusion, we pause and consider the impact on the people and activities around us.

The elements needing consideration are generally numerous and varied. In many cases, consideration of one element from a different perspective will reveal potential dangers in pursuing our decision.

For instance, moving a business activity to a new location may improve potential output considerably but it may also lead to the loss of skilled workers if the distance moved is too great. Which of these is the more important consideration? Is there some way of lessening the conflict?

These are the sort of problems that may arise from incomplete critical thinking, a demonstration perhaps of the critical importance of good critical thinking.

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In Summary:

Critical thinking is aimed at achieving the best possible outcomes in any situation. In order to achieve this it must involve gathering and evaluating information from as many different sources possible.

Critical thinking requires a clear, often uncomfortable, assessment of your personal strengths, weaknesses and preferences and their possible impact on decisions you may make.

Critical thinking requires the development and use of foresight as far as this is possible. As Doris Day sang, “the future’s not ours to see”.

Implementing the decisions made arising from critical thinking must take into account an assessment of possible outcomes and ways of avoiding potentially negative outcomes, or at least lessening their impact.

• Critical thinking involves reviewing the results of the application of decisions made and implementing change where possible.

It might be thought that we are overextending our demands on critical thinking in expecting that it can help to construct focused meaning rather than examining the information given and the knowledge we have acquired to see if we can, if necessary, construct a meaning that will be acceptable and useful.

After all, almost no information we have available to us, either externally or internally, carries any guarantee of its life or appropriateness.  Neat step-by-step instructions may provide some sort of trellis on which our basic understanding of critical thinking can blossom but it doesn’t and cannot provide any assurance of certainty, utility or longevity.

Continue to: Critical Thinking and Fake News Critical Reading

See also: Analytical Skills Understanding and Addressing Conspiracy Theories Introduction to Neuro-Linguistic Programming (NLP)

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Critical Thinking

Developing the right mindset and skills.

By the Mind Tools Content Team

We make hundreds of decisions every day and, whether we realize it or not, we're all critical thinkers.

We use critical thinking each time we weigh up our options, prioritize our responsibilities, or think about the likely effects of our actions. It's a crucial skill that helps us to cut out misinformation and make wise decisions. The trouble is, we're not always very good at it!

In this article, we'll explore the key skills that you need to develop your critical thinking skills, and how to adopt a critical thinking mindset, so that you can make well-informed decisions.

What Is Critical Thinking?

Critical thinking is the discipline of rigorously and skillfully using information, experience, observation, and reasoning to guide your decisions, actions, and beliefs. You'll need to actively question every step of your thinking process to do it well.

Collecting, analyzing and evaluating information is an important skill in life, and a highly valued asset in the workplace. People who score highly in critical thinking assessments are also rated by their managers as having good problem-solving skills, creativity, strong decision-making skills, and good overall performance. [1]

Key Critical Thinking Skills

Critical thinkers possess a set of key characteristics which help them to question information and their own thinking. Focus on the following areas to develop your critical thinking skills:

Being willing and able to explore alternative approaches and experimental ideas is crucial. Can you think through "what if" scenarios, create plausible options, and test out your theories? If not, you'll tend to write off ideas and options too soon, so you may miss the best answer to your situation.

To nurture your curiosity, stay up to date with facts and trends. You'll overlook important information if you allow yourself to become "blinkered," so always be open to new information.

But don't stop there! Look for opposing views or evidence to challenge your information, and seek clarification when things are unclear. This will help you to reassess your beliefs and make a well-informed decision later. Read our article, Opening Closed Minds , for more ways to stay receptive.

Logical Thinking

You must be skilled at reasoning and extending logic to come up with plausible options or outcomes.

It's also important to emphasize logic over emotion. Emotion can be motivating but it can also lead you to take hasty and unwise action, so control your emotions and be cautious in your judgments. Know when a conclusion is "fact" and when it is not. "Could-be-true" conclusions are based on assumptions and must be tested further. Read our article, Logical Fallacies , for help with this.

Use creative problem solving to balance cold logic. By thinking outside of the box you can identify new possible outcomes by using pieces of information that you already have.

Self-Awareness

Many of the decisions we make in life are subtly informed by our values and beliefs. These influences are called cognitive biases and it can be difficult to identify them in ourselves because they're often subconscious.

Practicing self-awareness will allow you to reflect on the beliefs you have and the choices you make. You'll then be better equipped to challenge your own thinking and make improved, unbiased decisions.

One particularly useful tool for critical thinking is the Ladder of Inference . It allows you to test and validate your thinking process, rather than jumping to poorly supported conclusions.

Developing a Critical Thinking Mindset

Combine the above skills with the right mindset so that you can make better decisions and adopt more effective courses of action. You can develop your critical thinking mindset by following this process:

Gather Information

First, collect data, opinions and facts on the issue that you need to solve. Draw on what you already know, and turn to new sources of information to help inform your understanding. Consider what gaps there are in your knowledge and seek to fill them. And look for information that challenges your assumptions and beliefs.

Be sure to verify the authority and authenticity of your sources. Not everything you read is true! Use this checklist to ensure that your information is valid:

• Are your information sources trustworthy ? (For example, well-respected authors, trusted colleagues or peers, recognized industry publications, websites, blogs, etc.)
• Is the information you have gathered up to date ?
• Has the information received any direct criticism ?
• Does the information have any errors or inaccuracies ?
• Is there any evidence to support or corroborate the information you have gathered?
• Is the information you have gathered subjective or biased in any way? (For example, is it based on opinion, rather than fact? Is any of the information you have gathered designed to promote a particular service or organization?)

If any information appears to be irrelevant or invalid, don't include it in your decision making. But don't omit information just because you disagree with it, or your final decision will be flawed and bias.

Now observe the information you have gathered, and interpret it. What are the key findings and main takeaways? What does the evidence point to? Start to build one or two possible arguments based on what you have found.

You'll need to look for the details within the mass of information, so use your powers of observation to identify any patterns or similarities. You can then analyze and extend these trends to make sensible predictions about the future.

To help you to sift through the multiple ideas and theories, it can be useful to group and order items according to their characteristics. From here, you can compare and contrast the different items. And once you've determined how similar or different things are from one another, Paired Comparison Analysis can help you to analyze them.

The final step involves challenging the information and rationalizing its arguments.

Apply the laws of reason (induction, deduction, analogy) to judge an argument and determine its merits. To do this, it's essential that you can determine the significance and validity of an argument to put it in the correct perspective. Take a look at our article, Rational Thinking , for more information about how to do this.

Once you have considered all of the arguments and options rationally, you can finally make an informed decision.

Afterward, take time to reflect on what you have learned and what you found challenging. Step back from the detail of your decision or problem, and look at the bigger picture. Record what you've learned from your observations and experience.

Critical thinking involves rigorously and skilfully using information, experience, observation, and reasoning to guide your decisions, actions and beliefs. It's a useful skill in the workplace and in life.

You'll need to be curious and creative to explore alternative possibilities, but rational to apply logic, and self-aware to identify when your beliefs could affect your decisions or actions.

You can demonstrate a high level of critical thinking by validating your information, analyzing its meaning, and finally evaluating the argument.

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• What Is Critical Thinking? | Definition & Examples

What Is Critical Thinking? | Definition & Examples

Published on May 30, 2022 by Eoghan Ryan . Revised on May 31, 2023.

Critical thinking is the ability to effectively analyze information and form a judgment .

To think critically, you must be aware of your own biases and assumptions when encountering information, and apply consistent standards when evaluating sources .

Critical thinking skills help you to:

• Identify credible sources
• Evaluate and respond to arguments
• Assess alternative viewpoints
• Test hypotheses against relevant criteria

Table of contents

Why is critical thinking important, critical thinking examples, how to think critically, other interesting articles, frequently asked questions about critical thinking.

Critical thinking is important for making judgments about sources of information and forming your own arguments. It emphasizes a rational, objective, and self-aware approach that can help you to identify credible sources and strengthen your conclusions.

Critical thinking is important in all disciplines and throughout all stages of the research process . The types of evidence used in the sciences and in the humanities may differ, but critical thinking skills are relevant to both.

In academic writing , critical thinking can help you to determine whether a source:

• Is free from research bias
• Provides evidence to support its research findings
• Considers alternative viewpoints

Outside of academia, critical thinking goes hand in hand with information literacy to help you form opinions rationally and engage independently and critically with popular media.

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Critical thinking can help you to identify reliable sources of information that you can cite in your research paper . It can also guide your own research methods and inform your own arguments.

Outside of academia, critical thinking can help you to be aware of both your own and others’ biases and assumptions.

Academic examples

However, when you compare the findings of the study with other current research, you determine that the results seem improbable. You analyze the paper again, consulting the sources it cites.

You notice that the research was funded by the pharmaceutical company that created the treatment. Because of this, you view its results skeptically and determine that more independent research is necessary to confirm or refute them. Example: Poor critical thinking in an academic context You’re researching a paper on the impact wireless technology has had on developing countries that previously did not have large-scale communications infrastructure. You read an article that seems to confirm your hypothesis: the impact is mainly positive. Rather than evaluating the research methodology, you accept the findings uncritically.

Nonacademic examples

However, you decide to compare this review article with consumer reviews on a different site. You find that these reviews are not as positive. Some customers have had problems installing the alarm, and some have noted that it activates for no apparent reason.

You revisit the original review article. You notice that the words “sponsored content” appear in small print under the article title. Based on this, you conclude that the review is advertising and is therefore not an unbiased source. Example: Poor critical thinking in a nonacademic context You support a candidate in an upcoming election. You visit an online news site affiliated with their political party and read an article that criticizes their opponent. The article claims that the opponent is inexperienced in politics. You accept this without evidence, because it fits your preconceptions about the opponent.

There is no single way to think critically. How you engage with information will depend on the type of source you’re using and the information you need.

However, you can engage with sources in a systematic and critical way by asking certain questions when you encounter information. Like the CRAAP test , these questions focus on the currency , relevance , authority , accuracy , and purpose of a source of information.

When encountering information, ask:

• Who is the author? Are they an expert in their field?
• What do they say? Is their argument clear? Can you summarize it?
• When did they say this? Is the source current?
• Where is the information published? Is it an academic article? Is it peer-reviewed ?
• Why did the author publish it? What is their motivation?
• How do they make their argument? Is it backed up by evidence? Does it rely on opinion, speculation, or appeals to emotion ? Do they address alternative arguments?

Critical thinking also involves being aware of your own biases, not only those of others. When you make an argument or draw your own conclusions, you can ask similar questions about your own writing:

• Am I only considering evidence that supports my preconceptions?
• Is my argument expressed clearly and backed up with credible sources?
• Would I be convinced by this argument coming from someone else?

If you want to know more about ChatGPT, AI tools , citation , and plagiarism , make sure to check out some of our other articles with explanations and examples.

• ChatGPT vs human editor
• ChatGPT citations
• Is ChatGPT trustworthy?
• Using ChatGPT for your studies
• What is ChatGPT?
• Chicago style
• Paraphrasing

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• Types of plagiarism
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• Avoiding plagiarism
• Academic integrity
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Critical thinking refers to the ability to evaluate information and to be aware of biases or assumptions, including your own.

Like information literacy , it involves evaluating arguments, identifying and solving problems in an objective and systematic way, and clearly communicating your ideas.

Critical thinking skills include the ability to:

You can assess information and arguments critically by asking certain questions about the source. You can use the CRAAP test , focusing on the currency , relevance , authority , accuracy , and purpose of a source of information.

Ask questions such as:

• Who is the author? Are they an expert?
• How do they make their argument? Is it backed up by evidence?

A credible source should pass the CRAAP test  and follow these guidelines:

• The information should be up to date and current.
• The author and publication should be a trusted authority on the subject you are researching.
• The sources the author cited should be easy to find, clear, and unbiased.
• For a web source, the URL and layout should signify that it is trustworthy.

Information literacy refers to a broad range of skills, including the ability to find, evaluate, and use sources of information effectively.

Being information literate means that you:

• Know how to find credible sources
• Use relevant sources to inform your research
• Understand what constitutes plagiarism
• Know how to cite your sources correctly

Confirmation bias is the tendency to search, interpret, and recall information in a way that aligns with our pre-existing values, opinions, or beliefs. It refers to the ability to recollect information best when it amplifies what we already believe. Relatedly, we tend to forget information that contradicts our opinions.

Although selective recall is a component of confirmation bias, it should not be confused with recall bias.

On the other hand, recall bias refers to the differences in the ability between study participants to recall past events when self-reporting is used. This difference in accuracy or completeness of recollection is not related to beliefs or opinions. Rather, recall bias relates to other factors, such as the length of the recall period, age, and the characteristics of the disease under investigation.

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Critical thinking – A skill and a process

Now, that oversimplified approach to learning certainly is the first step to studying as well. However, in order to be successful in our studies, we need to do more than just contain and repeat information. We need to be able to assess the value of the information, its correctness, and its contribution to any given debate. Ideally, we are able to put it into context with other aspects of our knowledge, too. This is what makes us students, this is what makes us critical thinkers.

Critical thinking is not just one skill, rather it is the result of a number of skills applied effectively. In order to be able to think critically, you’ll need to be able reason. You’ll need to be able to assess the source of the information you’re given and you’ll be able to reflect on its accuracy or validity, depending on your task.

By thinking critically, you are applying each of those skills in order to evaluate the information in front of you. This can be a theory, a new research result, or even a news item. Critical thinking allows you to apply an objective approach to your learning, rather than subjectively following either the proposed information you’re given, or your own opinion rather than clear and convincing arguments and facts.

Critical thinking is a process of continuing evaluation and reflection. It is most powerful, when leading to a change of view in ourselves or in others.

This is where critical thinking becomes relevant outside the world of studying. By being critical of what we read, hear and see, we are engaging with the society we live in actively. We are not perceiving anything as given, but are rather reflecting on the value and correctness of the way society works.

This helps us to be better employees, by reflecting on where processes and ways of working can be improved. It helps us to more engaged citizens, as we are reflecting on political campaigns and their truthfulness and value for us when we are asked to participate in an election. Critical thinking pushes ourselves and our environment to continuously adapt and improve.

When you think critically, you open up a whole new way of engaging with the world around you.

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1 Introduction to Critical Thinking

I. what is c ritical t hinking [1].

Critical thinking is the ability to think clearly and rationally about what to do or what to believe.  It includes the ability to engage in reflective and independent thinking. Someone with critical thinking skills is able to do the following:

• Understand the logical connections between ideas.
• Identify, construct, and evaluate arguments.
• Detect inconsistencies and common mistakes in reasoning.
• Solve problems systematically.
• Identify the relevance and importance of ideas.
• Reflect on the justification of one’s own beliefs and values.

Critical thinking is not simply a matter of accumulating information. A person with a good memory and who knows a lot of facts is not necessarily good at critical thinking. Critical thinkers are able to deduce consequences from what they know, make use of information to solve problems, and to seek relevant sources of information to inform themselves.

Critical thinking should not be confused with being argumentative or being critical of other people. Although critical thinking skills can be used in exposing fallacies and bad reasoning, critical thinking can also play an important role in cooperative reasoning and constructive tasks. Critical thinking can help us acquire knowledge, improve our theories, and strengthen arguments. We can also use critical thinking to enhance work processes and improve social institutions.

Some people believe that critical thinking hinders creativity because critical thinking requires following the rules of logic and rationality, whereas creativity might require breaking those rules. This is a misconception. Critical thinking is quite compatible with thinking “out-of-the-box,” challenging consensus views, and pursuing less popular approaches. If anything, critical thinking is an essential part of creativity because we need critical thinking to evaluate and improve our creative ideas.

II. The I mportance of C ritical T hinking

Critical thinking is a domain-general thinking skill. The ability to think clearly and rationally is important whatever we choose to do. If you work in education, research, finance, management or the legal profession, then critical thinking is obviously important. But critical thinking skills are not restricted to a particular subject area. Being able to think well and solve problems systematically is an asset for any career.

Critical thinking is very important in the new knowledge economy.  The global knowledge economy is driven by information and technology. One has to be able to deal with changes quickly and effectively. The new economy places increasing demands on flexible intellectual skills, and the ability to analyze information and integrate diverse sources of knowledge in solving problems. Good critical thinking promotes such thinking skills, and is very important in the fast-changing workplace.

Critical thinking enhances language and presentation skills. Thinking clearly and systematically can improve the way we express our ideas. In learning how to analyze the logical structure of texts, critical thinking also improves comprehension abilities.

Critical thinking promotes creativity. To come up with a creative solution to a problem involves not just having new ideas. It must also be the case that the new ideas being generated are useful and relevant to the task at hand. Critical thinking plays a crucial role in evaluating new ideas, selecting the best ones and modifying them if necessary.

Critical thinking is crucial for self-reflection. In order to live a meaningful life and to structure our lives accordingly, we need to justify and reflect on our values and decisions. Critical thinking provides the tools for this process of self-evaluation.

Good critical thinking is the foundation of science and democracy. Science requires the critical use of reason in experimentation and theory confirmation. The proper functioning of a liberal democracy requires citizens who can think critically about social issues to inform their judgments about proper governance and to overcome biases and prejudice.

Critical thinking is a   metacognitive skill . What this means is that it is a higher-level cognitive skill that involves thinking about thinking. We have to be aware of the good principles of reasoning, and be reflective about our own reasoning. In addition, we often need to make a conscious effort to improve ourselves, avoid biases, and maintain objectivity. This is notoriously hard to do. We are all able to think but to think well often requires a long period of training. The mastery of critical thinking is similar to the mastery of many other skills. There are three important components: theory, practice, and attitude.

III. Improv ing O ur T hinking S kills

If we want to think correctly, we need to follow the correct rules of reasoning. Knowledge of theory includes knowledge of these rules. These are the basic principles of critical thinking, such as the laws of logic, and the methods of scientific reasoning, etc.

Also, it would be useful to know something about what not to do if we want to reason correctly. This means we should have some basic knowledge of the mistakes that people make. First, this requires some knowledge of typical fallacies. Second, psychologists have discovered persistent biases and limitations in human reasoning. An awareness of these empirical findings will alert us to potential problems.

However, merely knowing the principles that distinguish good and bad reasoning is not enough. We might study in the classroom about how to swim, and learn about the basic theory, such as the fact that one should not breathe underwater. But unless we can apply such theoretical knowledge through constant practice, we might not actually be able to swim.

Similarly, to be good at critical thinking skills it is necessary to internalize the theoretical principles so that we can actually apply them in daily life. There are at least two ways to do this. One is to perform lots of quality exercises. These exercises don’t just include practicing in the classroom or receiving tutorials; they also include engaging in discussions and debates with other people in our daily lives, where the principles of critical thinking can be applied. The second method is to think more deeply about the principles that we have acquired. In the human mind, memory and understanding are acquired through making connections between ideas.

Good critical thinking skills require more than just knowledge and practice. Persistent practice can bring about improvements only if one has the right kind of motivation and attitude. The following attitudes are not uncommon, but they are obstacles to critical thinking:

• I prefer being given the correct answers rather than figuring them out myself.
• I don’t like to think a lot about my decisions as I rely only on gut feelings.
• I don’t usually review the mistakes I have made.
• I don’t like to be criticized.

To improve our thinking we have to recognize the importance of reflecting on the reasons for belief and action. We should also be willing to engage in debate, break old habits, and deal with linguistic complexities and abstract concepts.

The  California Critical Thinking Disposition Inventory  is a psychological test that is used to measure whether people are disposed to think critically. It measures the seven different thinking habits listed below, and it is useful to ask ourselves to what extent they describe the way we think:

• Truth-Seeking—Do you try to understand how things really are? Are you interested in finding out the truth?
• Open-Mindedness—How receptive are you to new ideas, even when you do not intuitively agree with them? Do you give new concepts a fair hearing?
• Analyticity—Do you try to understand the reasons behind things? Do you act impulsively or do you evaluate the pros and cons of your decisions?
• Systematicity—Are you systematic in your thinking? Do you break down a complex problem into parts?
• Confidence in Reasoning—Do you always defer to other people? How confident are you in your own judgment? Do you have reasons for your confidence? Do you have a way to evaluate your own thinking?
• Inquisitiveness—Are you curious about unfamiliar topics and resolving complicated problems? Will you chase down an answer until you find it?
• Maturity of Judgment—Do you jump to conclusions? Do you try to see things from different perspectives? Do you take other people’s experiences into account?

Finally, as mentioned earlier, psychologists have discovered over the years that human reasoning can be easily affected by a variety of cognitive biases. For example, people tend to be over-confident of their abilities and focus too much on evidence that supports their pre-existing opinions. We should be alert to these biases in our attitudes towards our own thinking.

IV. Defining Critical Thinking

There are many different definitions of critical thinking. Here we list some of the well-known ones. You might notice that they all emphasize the importance of clarity and rationality. Here we will look at some well-known definitions in chronological order.

1) Many people trace the importance of critical thinking in education to the early twentieth-century American philosopher John Dewey. But Dewey did not make very extensive use of the term “critical thinking.” Instead, in his book  How We Think (1910), he argued for the importance of what he called “reflective thinking”:

…[when] the ground or basis for a belief is deliberately sought and its adequacy to support the belief examined. This process is called reflective thought; it alone is truly educative in value…

Active, persistent and careful consideration of any belief or supposed form of knowledge in light of the grounds that support it, and the further conclusions to which it tends, constitutes reflective thought.

There is however one passage from How We Think where Dewey explicitly uses the term “critical thinking”:

The essence of critical thinking is suspended judgment; and the essence of this suspense is inquiry to determine the nature of the problem before proceeding to attempts at its solution. This, more than any other thing, transforms mere inference into tested inference, suggested conclusions into proof.

2) The  Watson-Glaser Critical Thinking Appraisal  (1980) is a well-known psychological test of critical thinking ability. The authors of this test define critical thinking as:

…a composite of attitudes, knowledge and skills. This composite includes: (1) attitudes of inquiry that involve an ability to recognize the existence of problems and an acceptance of the general need for evidence in support of what is asserted to be true; (2) knowledge of the nature of valid inferences, abstractions, and generalizations in which the weight or accuracy of different kinds of evidence are logically determined; and (3) skills in employing and applying the above attitudes and knowledge.

3) A very well-known and influential definition of critical thinking comes from philosopher and professor Robert Ennis in his work “A Taxonomy of Critical Thinking Dispositions and Abilities” (1987):

Critical thinking is reasonable reflective thinking that is focused on deciding what to believe or do.

4) The following definition comes from a statement written in 1987 by the philosophers Michael Scriven and Richard Paul for the  National Council for Excellence in Critical Thinking (link), an organization promoting critical thinking in the US:

Critical thinking is the intellectually disciplined process of actively and skillfully conceptualizing, applying, analyzing, synthesizing, and/or evaluating information gathered from, or generated by, observation, experience, reflection, reasoning, or communication, as a guide to belief and action. In its exemplary form, it is based on universal intellectual values that transcend subject matter divisions: clarity, accuracy, precision, consistency, relevance, sound evidence, good reasons, depth, breadth, and fairness. It entails the examination of those structures or elements of thought implicit in all reasoning: purpose, problem, or question-at-issue, assumptions, concepts, empirical grounding; reasoning leading to conclusions, implications and consequences, objections from alternative viewpoints, and frame of reference.

The following excerpt from Peter A. Facione’s “Critical Thinking: A Statement of Expert Consensus for Purposes of Educational Assessment and Instruction” (1990) is quoted from a report written for the American Philosophical Association:

We understand critical thinking to be purposeful, self-regulatory judgment which results in interpretation, analysis, evaluation, and inference, as well as explanation of the evidential, conceptual, methodological, criteriological, or contextual considerations upon which that judgment is based. CT is essential as a tool of inquiry. As such, CT is a liberating force in education and a powerful resource in one’s personal and civic life. While not synonymous with good thinking, CT is a pervasive and self-rectifying human phenomenon. The ideal critical thinker is habitually inquisitive, well-informed, trustful of reason, open-minded, flexible, fairminded in evaluation, honest in facing personal biases, prudent in making judgments, willing to reconsider, clear about issues, orderly in complex matters, diligent in seeking relevant information, reasonable in the selection of criteria, focused in inquiry, and persistent in seeking results which are as precise as the subject and the circumstances of inquiry permit. Thus, educating good critical thinkers means working toward this ideal. It combines developing CT skills with nurturing those dispositions which consistently yield useful insights and which are the basis of a rational and democratic society.

V. Two F eatures of C ritical T hinking

A. how not what .

Critical thinking is concerned not with what you believe, but rather how or why you believe it. Most classes, such as those on biology or chemistry, teach you what to believe about a subject matter. In contrast, critical thinking is not particularly interested in what the world is, in fact, like. Rather, critical thinking will teach you how to form beliefs and how to think. It is interested in the type of reasoning you use when you form your beliefs, and concerns itself with whether you have good reasons to believe what you believe. Therefore, this class isn’t a class on the psychology of reasoning, which brings us to the second important feature of critical thinking.

B. Ought N ot Is ( or Normative N ot Descriptive )

There is a difference between normative and descriptive theories. Descriptive theories, such as those provided by physics, provide a picture of how the world factually behaves and operates. In contrast, normative theories, such as those provided by ethics or political philosophy, provide a picture of how the world should be. Rather than ask question such as why something is the way it is, normative theories ask how something should be. In this course, we will be interested in normative theories that govern our thinking and reasoning. Therefore, we will not be interested in how we actually reason, but rather focus on how we ought to reason.

In the introduction to this course we considered a selection task with cards that must be flipped in order to check the validity of a rule. We noted that many people fail to identify all the cards required to check the rule. This is how people do in fact reason (descriptive). We then noted that you must flip over two cards. This is how people ought to reason (normative).

• Section I-IV are taken from http://philosophy.hku.hk/think/ and are in use under the creative commons license. Some modifications have been made to the original content. ↵

Critical Thinking Copyright © 2019 by Brian Kim is licensed under a Creative Commons Attribution 4.0 International License , except where otherwise noted.

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Critical Thinking Definition, Skills, and Examples

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Critical thinking refers to the ability to analyze information objectively and make a reasoned judgment. It involves the evaluation of sources, such as data, facts, observable phenomena, and research findings.

Good critical thinkers can draw reasonable conclusions from a set of information, and discriminate between useful and less useful details to solve problems or make decisions. Employers prioritize the ability to think critically—find out why, plus see how you can demonstrate that you have this ability throughout the job application process. 

Why Do Employers Value Critical Thinking Skills?

Employers want job candidates who can evaluate a situation using logical thought and offer the best solution.

 Someone with critical thinking skills can be trusted to make decisions independently, and will not need constant handholding.

Hiring a critical thinker means that micromanaging won't be required. Critical thinking abilities are among the most sought-after skills in almost every industry and workplace. You can demonstrate critical thinking by using related keywords in your resume and cover letter, and during your interview.

Examples of Critical Thinking

The circumstances that demand critical thinking vary from industry to industry. Some examples include:

• A triage nurse analyzes the cases at hand and decides the order by which the patients should be treated.
• A plumber evaluates the materials that would best suit a particular job.
• An attorney reviews evidence and devises a strategy to win a case or to decide whether to settle out of court.
• A manager analyzes customer feedback forms and uses this information to develop a customer service training session for employees.

Promote Your Skills in Your Job Search

If critical thinking is a key phrase in the job listings you are applying for, be sure to emphasize your critical thinking skills throughout your job search.

Add Keywords to Your Resume

You can use critical thinking keywords (analytical, problem solving, creativity, etc.) in your resume. When describing your  work history , include top critical thinking skills that accurately describe you. You can also include them in your  resume summary , if you have one.

For example, your summary might read, “Marketing Associate with five years of experience in project management. Skilled in conducting thorough market research and competitor analysis to assess market trends and client needs, and to develop appropriate acquisition tactics.”

Mention Skills in Your Cover Letter

Include these critical thinking skills in your cover letter. In the body of your letter, mention one or two of these skills, and give specific examples of times when you have demonstrated them at work. Think about times when you had to analyze or evaluate materials to solve a problem.

Show the Interviewer Your Skills

You can use these skill words in an interview. Discuss a time when you were faced with a particular problem or challenge at work and explain how you applied critical thinking to solve it.

Some interviewers will give you a hypothetical scenario or problem, and ask you to use critical thinking skills to solve it. In this case, explain your thought process thoroughly to the interviewer. He or she is typically more focused on how you arrive at your solution rather than the solution itself. The interviewer wants to see you analyze and evaluate (key parts of critical thinking) the given scenario or problem.

Of course, each job will require different skills and experiences, so make sure you read the job description carefully and focus on the skills listed by the employer.

Top Critical Thinking Skills

Keep these in-demand critical thinking skills in mind as you update your resume and write your cover letter. As you've seen, you can also emphasize them at other points throughout the application process, such as your interview. 

Part of critical thinking is the ability to carefully examine something, whether it is a problem, a set of data, or a text. People with  analytical skills  can examine information, understand what it means, and properly explain to others the implications of that information.

• Asking Thoughtful Questions
• Data Analysis
• Interpretation
• Questioning Evidence
• Recognizing Patterns

Communication

Often, you will need to share your conclusions with your employers or with a group of colleagues. You need to be able to  communicate with others  to share your ideas effectively. You might also need to engage in critical thinking in a group. In this case, you will need to work with others and communicate effectively to figure out solutions to complex problems.

• Active Listening
• Collaboration
• Explanation
• Interpersonal
• Presentation
• Verbal Communication
• Written Communication

Critical thinking often involves creativity and innovation. You might need to spot patterns in the information you are looking at or come up with a solution that no one else has thought of before. All of this involves a creative eye that can take a different approach from all other approaches.

• Flexibility
• Conceptualization
• Imagination
• Drawing Connections
• Synthesizing

Open-Mindedness

To think critically, you need to be able to put aside any assumptions or judgments and merely analyze the information you receive. You need to be objective, evaluating ideas without bias.

• Objectivity
• Observation

Problem Solving

Problem-solving is another critical thinking skill that involves analyzing a problem, generating and implementing a solution, and assessing the success of the plan. Employers don’t simply want employees who can think about information critically. They also need to be able to come up with practical solutions.

• Attention to Detail
• Clarification
• Decision Making
• Groundedness
• Identifying Patterns

More Critical Thinking Skills

• Inductive Reasoning
• Deductive Reasoning
• Noticing Outliers
• Adaptability
• Emotional Intelligence
• Brainstorming
• Optimization
• Restructuring
• Integration
• Strategic Planning
• Project Management
• Ongoing Improvement
• Causal Relationships
• Case Analysis
• Diagnostics
• SWOT Analysis
• Business Intelligence
• Quantitative Data Management
• Qualitative Data Management
• Risk Management
• Scientific Method
• Consumer Behavior

Key Takeaways

• Demonstrate that you have critical thinking skills by adding relevant keywords to your resume.
• Mention pertinent critical thinking skills in your cover letter, too, and include an example of a time when you demonstrated them at work.
• Finally, highlight critical thinking skills during your interview. For instance, you might discuss a time when you were faced with a challenge at work and explain how you applied critical thinking skills to solve it.

University of Louisville. " What is Critical Thinking ."

American Management Association. " AMA Critical Skills Survey: Workers Need Higher Level Skills to Succeed in the 21st Century ."

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A Guide To Critical Thinking think.maresh.info

What is Critical Thinking?

Critical thinking is the art of analyzing and evaluating thinking with a view to improving it in order to make an informed decision that is most likely to result in desired effects .

Critical thinking describes a process of uncovering and checking our assumptions and reasoning. First, we analyze to discover the assumptions that guide our decisions, actions, and choices. Next, we check the accuracy of these assumptions by exploring as many different perspectives, viewpoints, and sources as possible. Finally, we make informed decisions or judgments that are based on these researched assumptions.

Life is a series of decisions, some small, some much larger. Whom we date or choose as friends, the work or career we pursue, which political candidates we support, what we choose to eat, where we live, what consumer goods we buy, if and whom we marry, if and how we raise children—all these decisions are based on assumptions. We assume our friends will be trustworthy and won't talk about us behind our backs. We assume our career choices will be personally fulfilling or financially remunerative. We assume politicians we vote for have our, or the community's, best interests at heart. We assume that the foods we choose to eat are healthy for us, and so on.

These assumptions are sometimes correct. At other times, however, the assumptions we base our decisions on have never been examined. Sometimes we hold these assumptions because people we respect (friends, parents, teachers, religious leaders) have told us they are right. At other times we have picked these assumptions up as we travel through life but can't say exactly where they've come from. To make good decisions in life we need to be sure that these assumptions are accurate and valid – that they fit the situations and decisions we are facing. Critical thinking describes the process we use to uncover and check our assumptions. Decisions based on critical thinking are more likely to be ones we feel confident about and to have the effects we want them to have.

Your Mental Models

Mental models are the filters we use to understand the world. A mental model is a representation of how something works. Everyday we encounter so much information that we cannot store it all and the phenomena we encounter are too complex to understand every detail. Therefore, we use filtering models to simplify the complex into organizable and understandable chunks, conceptual models to file and organize new information, and reasoning models to create new ideas and make decisions.

Mental models shape what we think, how we interpret what we value most, where we direct our attention, how we reason, and where we perceive opportunities. The quality of our thinking is only as good as the models in our head and their usefulness in a given situation. The best models improve our likelihood of making the best decisions. By critically examining our assumptions, we can adjust them to be in better accord with reality and they become more powerful mental models in the toolkit through which we understand reality.

All of us go through life with many incorrect core assumptions about reality. For example, most of us believe (1) we are perceiving reality accurately, (2) our perceptions are valid, and (3) that what is obvious to us must be obvious to others. Let that sink in for a minute: these are incorrect assumptions. It is simply not possible to perceive reality accurately and everyone's reality is different. Our sensory nervous system sends gigabytes per minute of data to the brain but the brain has the attentional bandwidth to process megabytes per minute. On top of that, we are always allocating some of our bandwidth to our thoughts (have you every been lost in thought and missed an important detail?). To improve our thinking, first we have to accept that our perceptions of the moment are filtered through mental models , that our most dearly held beliefs may not correctly describe reality, and be open to improving them.

Building your toolkit of mental models is a lifelong project. Stick with it, and you'll find that your ability to understand reality, accomplish your goals, deepen your relationships, and make the best decisions will always improve. Critical thinking is a set of reasoning tools that we use to improve our other models about the world. They are the foundation upon which we can build our best mental models. In the next section, you will find an overview of the reasoning tools described in this website.

Organization of this Resource

Learn to analyze the elements of reasoning.

The Critical Analysis page is dedicated to the first step in the process of developing critical thinking skills, recognizing elements of reasoning that are present in the mind whenever we reason. I categorize six elements of reasoning: purposes, questions, points of view, information, assumptions, and reasoning. Note how these elements are related in the following paragraph.

To take command of our thinking, first we need to clearly formulate both our purpose and the question at issue. To uncover truths, we need to make logical inferences based on sound assumptions and information that is both accurate and relevant to the question we are dealing with. We need to understand our own point of view and fully consider other relevant viewpoints. We also need to recognize problems created by bugs in the human operating system by formally working around them. These bugs can be categorized into two major categories, each of which has it's own page.

Fallacies of reasoning are found in unsound arguments that may sound persuasive on the surface.

Cognitive biases are a predictably systematic patterns of deviation rationality in judgment. Cognitive biases can lead to irrational thought through distortions of perceived reality, inaccurate judgment, or illogical interpretation. For example, confirmation bias is the tendency to interpret new evidence as confirmation of one's existing beliefs and filter-out information that does not confirm one's existing beliefs.

Learn to evaluate reasoning

The Critical Evaluation page describes the second step in the process of critical thinking, evaluating the quality of thought. We need to use concepts justifiably and follow out the implications of decisions we are considering.

Learn to avoid other common mistakes

No one is a master of every discipline, however there are some common misconceptions that people have of other disciplines that you should learn to avoid.

Additionally, I have created a page of common writing errors that I have observed in developing student writing.

Before submitting your writing, I suggest that you please consult these resources as checklists and verify that you have done your best to avoid these mistakes.

Critical Analysis

Analysis is the act of breaking something complex down into simpler parts that you examine in detail. To critically analyze a text or idea, identify its purpose, the question at issue, the author's point of view, the kinds of information involved, the reasoning, and the conclusions.

Unless a text is simply presenting information, it will often contain arguments. An argument is a series of statements that reach a logical conclusion that is intended to reveal the degree of truth of another statement. Arguments begin with premises (kinds of information) that are related to each other using valid forms of reasoning (a process) to arrive at a logical conclusion, new information. A logical conclusion is a new kind of information that is true in light of premises being true (if the premises are all facts) or seeming to be true (if the premises contain some opinions). A logical conclusion may be false, if the premises are false or the reasoning is poor.

1. Identify the Purposes

All texts or ideas have a purpose .

• What do you think the author wants us to do, think about, or believe?
• Periodically check that the text or you are still on target with the purpose

2. Identify the Questions at Issue

When reasoning is present, the author is attempting to figure something out, to answer some question, or to solve a problem.

• Take time to clearly and precisely state the question at issue
• Express the question in several ways to clarify its meaning and scope
• Break down the question into sub questions
• Identify if the question has one right answer, is a matter of opinion, or requires reasoning from more than one point of view

3. Identify Points of View

All reasoning is done from some point of view. We often experience the world in such a way as to assume that we are observing things just as they are, as though we were seeing the world without the filter of a point of view. Nonetheless, we also recognize that others have points of view that lead them to conclusions we fundamentally disagree with. One of the key dispositions of critical thinking is the on-going sense that, as humans, we always think within a perspective, that we virtually never experience things totally and absolutely. There is a connection, therefore, between thinking so as to be aware of our assumptions and intellectual humility. Therefore, it is often helpful to open your mind and involve other people (friends, family, work colleagues) who help us see ourselves and our actions from unfamiliar perspectives. Sometimes reading books, watching videos, or having new experiences such as traveling to other cultures, going to college, or being an intern help us become aware of our assumptions. It is equally important to recognize that one person's is biased by their world view and experiences, and therefore all points of view should be examined critically.

• Identify your point of view
• Identify author's point of view
• Compare and contrast differing points of view

4. Distinguish Types of Information

Uncritical thinkers treat their conclusions as something given to them through experience, as something they directly observes in the world. As a result, they find it difficult to see why anyone might disagree with their conclusions. After all, they believe that the truth of their views is right there for everyone to see! Such people find it difficult to describe evidence without interpreting it through their point of view. Critical thinking requires the ability to label types of information and evaluate their quality before accepting an argument.

Information is true if it is accord accord with reality. Since our knowledge of reality is always incomplete, in practice truth is measured by its accord with the best information we have about reality. All information has an associated degree of belief (a feeling about truth) or confidence (the scientific term for statistical likelihood of truth) in its truth value. When analyzing, we are simply categorizing rather than evaluating the quality of the information.

All arguments are based on information. Premises are information that is used in the context of an argument. Information can be classified with four characteristics that describe the context in which it is used.

1. Evidence is information upon which conclusions are based. There are two categories of evidence:

• Facts (objective truth)
• Opinions (a feeling about the truth)

2. Assumptions are statements that we accept as true without proof or demonstration.

3. Conclusions are the results or reasoning, irrespective of their truth value.

4. Propaganda is information that is not objective and is used primarily to influence an audience and further an agenda

4A. Identify Evidence

Evidence is information that is relevant to question at issue. Both facts and opinions are evidence.

• Unless necessary facts unavailable, you should restrict your evidence to facts, verifiable information.
• Restrict your conclusions to those supported by the evidence you have.

A fact is an accurate description of an object, event, or statement that is independently verifiable by empirical means .

There are two distinct senses of the word "factual." The word may refer to a verified fact. However, "factual" may also refer to claims that are "factual in nature" in the sense that they can be verified or disproven by observation or empirical study, but those claims must be evaluated to determine if they are true. People often confuse these two senses, even to the point of accepting as true, statements which merely "seem factual", for example, "29.23 % of Americans suffer from depression." Before I accept this as true, I should assess it. I should ask such questions as "How do you know? How could this be known? Did you merely ask people if they were depressed and extrapolate those results? How exactly did you arrive at this figure?"

Purported facts should be assessed for their accuracy, completeness, and relevance to the issue. Sources of purported facts should be assessed for their qualifications, track records, and impartiality. Many students have experienced an education which stressed retention and repetition of factual claims. Such an emphasis stunts students' desire and ability to assess alleged facts, leaving them open to manipulation. Likewise, activities in which students "distinguish fact from opinion" often confuse these two senses. They encourage students to accept as true statements which merely "look like" facts.

To identify facts, look for these signal words in italics: "The annual report confirms ...," "Scientists have recently discovered ...," " According to the results of the tests...," "The investigation demonstrated ... "

Credible facts reference the observer of the information. You should accept a fact only after you have identified confirmation by many different independent observers and evaluated their credibility and potential bias. Even before this evaluation, you should reject a fact that does not have a clear source

As an example, in the debate we watched, Nick Gillespie says, "[drugs are] not addictive for 99 percent of people." This is factual only in the sense that may be empirically possible to measure, but you should not accept this as fact without more context such as a source.

If you have the opportunity, ask someone, "where did you get that information?" to give them the chance to confirm a fact. Until, you actually understand the limits and source of the fact, you should regard the information as suspicious and categorize it as an opinion that someone believes is true.

An opinion is a statement that expresses either how a person feels about something or what a person thinks is true . With objective verification, opinions can become facts. If they cannot be proven or disproven, they will always be opinions.

Since we cannot examine the facts in all situations, sometimes we must rely on an opinion as evidence in an argument. Any conclusion derived from an argument that uses an opinion in place of a fact will generally be less reliable. You should always acknowledge such uncertainty when presenting such a conclusion.

• Look for these signal words in italics: "He claimed that...," "It is the officer's view that...," "The report argues that...," "Many scientists suspect that... "
• Some opinions are more reliable than others. An opinion that is based on the objective consideration of a large amount of incomplete information will be more reliable than an opinion based on one observation and a feeling.
• Understand that things are not always as they appear to be. At times, writers, whether consciously or not, will frame opinion as fact and vice versa.
• Note that statements can contain both fact and opinion. They should be separately when analyzing an argument.

4B. Identify Assumptions

An assumption is a statement that we accept as true without proof or demonstration. It is an unstated premise, presupposition, or opinion that is required to connect data to conclusions.

All human thought and experience is based on assumptions. Our thought must begin with something we believe to be true in a particular context. We are typically unaware of what we assume and therefore rarely question our assumptions. Much of what is wrong with human thought can be found in the uncritical or unexamined assumptions that underlie it. Identifying and evaluating accuracy and validity of assumptions is arguably the most important application of critical thinking. Accurate and valid assumptions can become facts.

Assumptions are often very difficult to identify. Usually they are something we previously learned and do not question. They are part of our system of beliefs. We assume our beliefs to be true and use them to interpret the world about us.

This packet of exercises has many excellent examples assumptions identified in short scenarios.

4C. Identify Conclusions

Conclusions are the results or reasoning.

In logic, conclusions can be categorized based on their truth value:

• Sound conclusions result from true premises and valid reasoning.
• Unsound conclusions result from false premises and/or invalid reasoning.

Additionally, conclusions are often categorized as either:

• accurate/inaccurate based on the truth of the premises
• logical/illogical based on the quality of the reasoning
• justified/unjustified based on whether or not the truth value has been critically evaluated

Conclusions also can be categorized based on their role in an argument:

• Inferences (conclusions from a single step of reasoning that are used as a premise in a successive argument)
• Drawn conclusions (conclusions that relate back to the question at issue)

It should be noted that different disciplines that study human thought (i.e. philosophy, cognitive psychology, artificial intelligence, etc.) define the distinction between a conclusion and an inference differently. To avoid confusion, I will make the following distinctions. When analyzing reasoning, a logical conclusion refers to the result of any argument. When analyzing a complex argument focused on a question at issue, an inference is a logical conclusion drawn from a single step in reasoning and may be used as information in the premise of a successive step of reasoning. A drawn conclusion describes a logical conclusion that specifically answers the question at issue by logically relating many inferences as premises. The example in this article, effectively illustrates my distinction between an inference and drawn conclusion (Note that other sources may define these word in the exact opposite way!).

Conclusions are generally straight-forward to identify in context. When analyzing a complex argument focused on a complex question at issue, inferences are often made implicitly in the course of reasoning. For this reason, an inference may be more difficult to identify. Critical thinkers try to monitor their inferences to keep them in line with what is actually implied by what they know. When speaking, critical thinkers try to use words that imply only what they can legitimately justify. They recognize that there are established word usages which generate established implications.

• If we assume that it is dangerous to walk late at night in big cities and we move to Chicago, we will infer that it is dangerous to go for a walk late at night in Chicago. We probably take for granted our assumption that it is dangerous to walk late at night in big cities and in Chicago implicitly.
• To infer that an act that was murder, is to infer that it was intentional and unjustified. The implications of this inference are severe, thus sufficient evidence must exist to justify this opinion or fact.

A helpful tool is to first identify an inference (what do we infer from the situation being evaluated?) then identify an assumption that is the premise to that inference ("If the inference is true, what did I assume about the situation?"). Often an assumption you identify this way is an inference that can be further unpacked by repeating the second step to identify deeper core assumptions.

Situation: I heard a scratch at the door. I got up to let the cat in.

Inference: I inferred that the cat was at the door.

Ask: If that is true, what did I infer about the situation?

Assumptions: Only the cat makes that noise, and he makes it only when he wants to be let in.

Since different people can have difference assumptions, they will make different inferences about the reality of the same situation.

4D. Identify Propaganda

Propaganda is a special category of information that is not objective and is used primarily to influence an audience to reach a specific conclusion. Propaganda attempts to arouse emotions and biases to short-circuit rational judgment. The author of propaganda deliberately designs an argument that does not hold up to critical thinking. It's use indicates an intent to, at worst mislead, or at best persuade without the use of reasoning. Whether or not propaganda is ethical is a personal and context-dependent value judgment that is separate from critical thinking.

Students often find analysis of propaganda to be confusing because it is an extra feature of information, rather than its own type. Information that is propaganda can be any non-objective type (opinion, assumption, and/or inference) if it is deliberately used to manipulate opinions using poor reasoning. Moreover, propaganda quite utilizes poor reasoning—it often employs logical fallacies or takes advantage of cognitive biases to mislead.

The following is a list of common propaganda techniques:

• Bandwagon . It aims at persuading people to do a certain thing because many other people are doing it. An example can be a soft drink advertisement wherein a large group of people is shown drinking the same soft drink. People feel induced to opt for that drink as it is shown to be consumed by many. Similarly, by simply declaring without evidence that something is America's Favorite, significantly increases sales. Snob appeal is the reverse of bandwagon. It indicates that buying a certain product will make you stand out from the rest, as the masses won't afford to buy it.
• Card Stacking Propaganda. Now, this technique is perhaps most popularly used. It involves the deliberate omission of certain facts to fool the target audience. The term card stacking originates from gambling and occurs when players try to stack decks in their favor. A similar ideology is used by companies to make their products appear better than they actually are. Most brands use this propaganda technique to downplay unsavory details about their products and services. For instance, some companies may cleverly conceal "hidden charges" and only talk about the benefits of their products and services. Changing the shape of french fries so that one pays more for less food, still doesn't change the fact that eating fried food is unhealthy.
• Glittering Generalities Propaganda uses emotional appeal or/and vague statements to influence the audience. Advertising agencies thus use of phrases like as "inspiring you from within" or "to kick-start your day" to create positive anecdotes. This makes the product look more appealing, resulting in better sales.
• Hacking Identity: The Pride-Fear-Outrage-Hatred Formula. Critically examine when identity categories become significant to an argument. In some cases it may be appropriate, in others it may be an emotionally manipulative red herring.
• Example: In recent years, the Russian government has planted appeals to pride to amplify difference and strengthen online social communities. This is then followed by stories designed to invoke fear and outrage. A 2018 report to the United States Senate Select Committee on Intelligence details how these tactics are apparently designed to "hack" the minds of citizens in democratic nations into feeling disillusioned with social and political institutions. The goal is to weaken democratic participation and nudge countries towards increasingly pro-authoritarian values.
• Repetition. It is when the product name is repeated many times during an advertisement. This technique may use a jingle, which is appealing to the masses and fits in their minds. This takes advantage of the illusory truth effect, a cognitive bias that is encapsulated in the old adage, "if you tell a lie big enough and keep repeating it, people will eventually come to believe it." It is an unfortunate reality that the Internet is often used to make make untrue information seem true by repetition.
• Slogans. A slogan is a brief, striking phrase that may include labeling and stereotyping. Although slogans may be enlisted to support reasoned ideas, in practice they tend to act only as emotional appeals. Opponents of the US's invasion and occupation of Iraq use the slogan "blood for oil" to suggest that the invasion and its human losses was done to access Iraq's oil riches. On the other hand, supporters who argue that the US should continue to fight in Iraq use the slogan "cut and run" to suggest withdrawal is cowardly or weak. Similarly, the names of the military campaigns, such as "enduring freedom" or "just cause" can also be considered slogans, devised to influence people.
• Testimonial propaganda is popular advertising technique that uses renowned or celebrity figures to endorse products and services. Now in this case, when a famous person vouches for something, viewers are likely to take account of the credibility and popularity of that person. Watch Drake's Sprite commercial as an example.

Wikipedia has an extensive list of propaganda techniques with numerous examples.

5. Analyze Reasoning

The identification of poor reasoning invalidates the conclusion of an argument. The conclusion of the argument may or may not be true. You must formulate an alternative valid argue ment to support the conclusion.

5A. Identify Logical Fallacies

Fallacies are faulty reasoning used in the construction of an argument. This topic is so vast that I have created a separate fallacies of reasoning page.

5B. Identify Cognitive Biases

A cognitive bias is a cognitive shortcut that leads to a loss of objectivity. Cognitive biases can lead to irrational thought through distortions of perceived reality, inaccurate judgment, or illogical interpretation. By learning about some of the most common biases, you can learn and how to avoid falling victim to them.

The identification of cognitive biases at work in an argument should make you skeptical. Like fallacies, this topic is so vast that I have created a separate cognitive biases page to explain them.

Critical Evaluation

After we have cataloged the elements of reasoning, we must evaluate texts and our own reasoning for clarity, accuracy, precision, relevance, depth, breadth, significance, logic, and fairness. When making a decision with incomplete information, it is critical to recognize that truth is often a degree of belief based on our evaluation of the quality of the information and reasoning .

1. Evaluate point of view

• Playing the devil's advocate by arguing from a different point of view is a powerful exercise
• After reading a text, examine how much influence the author's point of view had on you

 Critically evaluate the reliability of an author (and publisher):

• What qualifications does the author have for writing on this subject? (Or what are the qualifications of the people the author quotes?)
• Based on your research on the author's background, what factors may have influenced his or her point of view?
• When and where was the article first published? Does this information affect the credibility of the article?

  Compare and contrast points of view to reveal how related material is presented by different authors and different purposes of their writing. After reading two texts on the same topic, ask yourself:

• What is the author's point of view in each of these articles?
• Why do you think that the points of view presented are so different?
• How much influence did each author's point of view have on you?

1A. Evaluate a Scientific Author's Qualifications

• Examine the primary source of information . ls there a reference to the source of information? If not, it cannot be verified. If so, is the source reputable?
• Examine the reputation of the author . Do the author(s) have training in science? If so, have they had formal training leading to an advanced degree such as a Master's degree or doctorate, and have they published widely in reputable journals? If not, then are they working with a reputable scientist(s) to evaluate the data?
• Does the discoverer say that a powerful establishment is trying to suppress his or her work? Often, the discoverer describes mainstream science as part of a larger conspiracy that includes industry and government. The idea is that the establishment will presumably stop at nothing to suppress discoveries that might shift the balance of wealth and power in society. This is not how science actually works. Science is an open and international enterprise focused on uncovering true descriptions of reality.
• Determine if the work was published in a peer-reviewed journal . Peer review is the standard process for scientific publications. Peer-reviewed manuscripts have been read by several scholars in the same field (called peers), and these peers have indicated that the experiments and conclusions meets the standards of their discipline and are suitable for publication. In the absence of peer-review the significance and quality of the data cannot be assessed.
• Has the discovery been pitched directly to the media? The integrity of science rests on the willingness of scientists to expose new ideas and findings to the scrutiny of other scientists. Thus, scientists expect their colleagues to reveal new findings to them initially. An attempt to bypass peer review by taking a new result directly to the media, and thence to the public, suggests that the work is unlikely to stand up to close examination by other scientists.
• Check if the journal has a good reputation for scientific research . If a peer-reviewed paper is cited, where was it published? Is the journal widely respected? One tool that is commonly used for ranking, evaluating, categorizing, and comparing journals is the frequency with which the "average article" in a journal has been cited in a particular year or period. The frequency of citation reflects acknowledgment of importance by the scientific community. High-impact and widely respected journals include Science and Nature. Therefore, a citation in Science generally suggests scholarly acceptance, whereas publication in a nonscientific or little-known journal does not.
• Determine if there is an independent confirmation by another published study . Even if a study is peer-reviewed and published in a reputable journal, independent assessment is critical to confirm or extend the findings. Even the best journals or scientists will occasionally make mistakes and publish papers that are later retracted. Sometimes there may be outright fabrication that is overlooked by the reviewers and not detected until later. In other cases, the scientific report may be accurate but its significance may be misrepresented by the media. Although it is a slow process ro establish a scientific "truth," a particular scientific conclusion will eventually either gain broad acceptance or be discarded.
• Assess whether a potential conflict of interest exists . Most of the high-impact journals require a conflict of interest statment on the first page of an article.
• Assess the quality of institution or panel . Does the report emanate from a University accredited by the U.S. Department of Education or equivalent society? Such information is generally more reliable than that issued from a single individual putting information out on the web. In the United States, government research arms such as the National Science Foundation and the National Institute of Health and professional scientific societies generally provide up-to-date, high-quality information.

2. Evaluate of Degree of Truth in Information

After analyzing to identify the different kinds of information, we must be explicit about the quality of each piece of information used in the text or our own thinking. Using the highest quality information in arguments increases the degree of belief in the truth of the argument. We must acknowledge when poor quality information is used in an argument and clearly state that we have low confidence in the truth of the argument.

• Search for information that opposes your position as well as information that supports it
• Make sure that all information used is clear, accurate, and relevant to the question at issue
• Make sure you have gathered sufficient information
• We can have the most confidence in facts that have been confirmed by many different independent observers.

A scientist's perspective on facts

In everyday language most of us consider a confirmed fact to be truth. However, scientists consider all truth to be provisional, the current facts serve as description of truth only for the time being. Scientists assume that all knowledge has the potential to be overturned if new information suggests that it should be. Scientists use the uncertainty and percent confidence to describe the statistical likelihood that a fact is true.

Physicist Richard P. Feynman once said, "In physics and in human affairs... whatever is not surrounded by uncertainty, cannot be the truth." He said this in reference to a newspaper article that asserted absolute belief in a scandalous rumor regarding a colleague. He observed that a responsible reporter should have referred to an "alleged incident." With no reference to a process that had first evaluated the quality of the truth, he considered accusation to be opinion, not fact.

• Is a particular measurement 78 ± 50 or 78 ± 1 meters? As you can see, the uncertainty deeply affects how you will use that information.
• It is a scientific formalism that any measurement missing a stated uncertainty has an uncertainty of ±1 in a last significant digit. Therefore, 78 seconds is understood to be 78 ± 1 seconds and 78.0 seconds is 78.0 ± 0.1 seconds.
• "The crash test results indicate a 98% chance that a head-on collision will kill you. As a professional scientist I cannot say that a head-on collision will kill you."

This last example highlight the property that all scientific information is actually a statement probability . Nothing in science is ever "proven" or "100% certain." Always avoid saying that science has proven something. This is a discipline-specific error in reasoning commonly made by non-scientists. Non-scientists sometimes misinterpret when scientists attach uncertainty to every fact. If there is 95% confidence that climate change is being caused by human activity, people with a psychological bias to avoid taking action around this crisis may focus on the 5% uncertainty in the truth value. On the other hand, people who are convinced of this fact and want to take action get frustrated that scientists refuse to say that it has been proven, we are certain. In practice, 95% confidence in science is the gold standard for a complex phenomenon being "as good as proven," but scientists always keep open the possibility that they don't have all the data and keep open the possibility that this fact may be more nuanced or simply wrong in the future.

Comparing and Contrasting Information

By comparing and contrasting information, you can identify facts, make inferences, and draw conclusions that would not otherwise be possible. After reading two texts, ask yourself:

• How do the articles differ in the information each one presents?
• Are the articles different in how they present information?
• Does the information appear to be complete and accurate? Why or why not?

2. Evaluate assumptions

[Unfinished]

Contrasting Assumptions

If two sides are arguing from different assumptions, it is very effective to focus on these in critical evaluation. Controversies generally rest on different sides interpreting the same information through different assumptions.

Assumptions, can be unjustified or justified, depending upon whether we do or do not have good reasons for them. Likewise, if two sides of a controversy share assumptions that are found faulty, both arguments become invalid.

• Ethan Nadelmann, founder and executive director of the Drug Policy Foundation, argues that law enforcement officials are overzealous in prosecuting individuals for marijuana possession citing that 87% of marijuana arrests are for possession of small amounts.
• The Office of National Drug Control Policy (ONDCP) contends that marijuana is not a harmless drug and must remain restricted. Besides causing physical problems, marijuana affects academic performance and emotional adjustment.
• Underlying both of their arguments is the assumption that adults cannot be permitted to make their own decisions about the use of particular drugs as they choose. A libertarian who worries about governmental restrictions on personal liberty would immediately recognize this shared deep assumption and challenge it. If convincingly challenged, both arguments lose validity.

3. Evaluate reasoning

When an argument doesn't "feel" right, first analyze it as follows. Write down the information that forms each premise of the argument and categorize them. Write down the conclusion and label it. Write your best general description of the reasoning that links them. The mechanics of the reasoning are usually found in a "therefore" type statement. To unmask the logic, replace the premise statements with letters that represent concepts and properties. Example: "It's raining and the sun is shining, therefore it's raining." The logical form is "X has property Q and P, therefore X has property Q". The logic is sound. [I will link some more examples later.]

3A. Logical Fallacies

Fallacies are faulty reasoning used in the construction of an argument. This topic is so vast that I have created a separate fallacies of reasoning page. The identification of fallacious reasoning invalidates an argument and we then forced to formulate our own arguments to uncover truth.

3B. Evaluate Propaganda

Propaganda is information that is not objective and is used primarily to influence an audience to reach a specific conclusion. Propaganda attempts to arouse emotions to short-circuit rational judgment. It is not by definition "good" or "bad." However, it's use indicates possible intent to, at worst mislead, or at best persuade without the use of reasoning. The techniques of propaganda are utilized in some logical fallacies and you will find some conceptual overlap. The following is a list of common propaganda techniques:

• Hacking Identity: The Pride, Fear, Outrage, Hatred Formula. Critically examine when identity categories become significant to an argument. In some cases it may be appropriate, in others it may be an emotionally manipulative red herring. Example: In recent years, the Russian government has planted appeals to pride to amplify difference and strengthen online social communities. This is then followed by stories designed to invoke fear and outrage. The effort is apparently designed to "hack" the minds of people in democratic nations into feeling disillusioned with social and political institutions.
• Stereotyping. People or objects are lumped together under simplistic labels, also called labeling. Example: Blonde women are beautiful, but dumb.
• Overgeneralizations . Treating a complex general thing as if it were a concrete thing. Example: " The UN's bureaucracy has forsaken its commitment... " or " The City extends strike deadline."

3C. Evaluate Cognitive Biases

A cognitive bias is a cognitive shortcut that leads to a loss of objectivity. Cognitive biases can lead to irrational thought through distortions of perceived reality, inaccurate judgment, or illogical interpretation. By learning about some of the most common biases, you can learn and how to avoid falling victim to them. The identification of cognitive biases at work in an argument should make you skeptical. Like fallacies, this topic is so vast that I have created a separate cognitive biases page to explain them.

4. Evaluate Judgments and Conclusions

After you read an article, you should be able to answer these questions:

• What judgments and conclusions were drawn by the author of this article?
• Are their faults of reasoning that make the drawn conclusion unjustified?
• Does the drawn conclusion challenge your assumptions?
• What other drawn conclusions are possible to draw using the same information?
• What other information might be important to know before making any judgment on the value and importance of this text?

5. Predict future Implications and Consequences

The alignment of reasonable future implications and consequences of a conclusion or judgment with your values should inform your reasoning.

• Trace the implications and consequences that follow from your reasoning
• Search for negative as well as positive implications
• Attempt to consider all possible consequences

Fallacies are faulty reasoning used in the construction of an argument . They make an argument appear to be better than it is. Here are some major fallacies of reasoning that you be able to recognize. All of the following fallacies are known as informal fallacies because they originate in a reasoning error. In contrast, formal fallacies , also known as non sequiturs, arise from the logical form of the argument. The following article introduces the most common fallacies.

In this video example we see rapid fire deployment of straw man, false dichotomy, and some formal fallacies on a kid who, impressively, recognizes each flaw of reasoning.

Identifying fallacies

Remember that arguments begin with premises that are related to each other using valid forms of reasoning to arrive at a logical conclusion .

Once you have analyzed the parts of an argument, evaluate:

Is the reasoning faulty?

• If the error in the argument is in the logical connection between two premises in drawing a conclusion it is likely to be a formal fallacy, also known as a non sequitur.
• If the truth revealed by the conclusion is a cause-effect relationship, it may be a questionable cause fallacy.
• Does the reasoning neglect many other possibilities? The argument might be a false dilemma or slippery slope fallacy.

Is/are the premise(s) faulty?

• If the premise of the argument must assume the conclusion to be true then read the section on improper premise fallacies.
• If weak premises and incomplete information lead to a strong conclusion, the argument contains a weak premise fallacy, also known as a faulty generalization.

Are the premises and/or the arguments a distraction from the actual issue in question?

• If any part of the argument is irrelevant to the actual issue, a relevance fallacy or red herring is at work.

Are you still not able to identify the error in reasoning?

• Consult the comprehensive list of fallacies at Wikipedia or ask your instructor for assistance.

Formal Fallacies (Non Sequiturs)

An error in the argument's form. Invalid logic is applied to the premises.

Fallacy fallacy. This is the inferrence that an argument containing a fallacy must have a false conclusion. It is entirely possible for someone to pose a bad argument for something that is true. Try not to get so caught-up in identification of logical fallacies that you are quick to dismiss a flawed argument—instead, try to make the argument reasonable.

• Example: "Some of your key evidence is missing, incomplete, or even faked! That proves I'm right!"

Syllogistic fallacies. There are many kinds of these. Syllogisms are generally three step arguments that use two premises to derive a conclusion. The premises and conclusion all take the form of categorical propositions that somehow relate two categories. These fallacies derive from incorrect application of logic. These fallacies are often more obvious if you draw a Venn diagram of the categories and shared features.

• Example: "All birds have beaks. That creature has a beak. Therefore, that creature is a bird."
• Form: All Z is B. This Y is B. Therefore, all Y is Z.
• Problem: B cannot be generalized as an exclusive feature of Z. Y could be an octopus.
• Example: "People in Kentucky support a border fence. People in New York do not support a border fence. Therefore, people in New York do not support people in Kentucky."
• Form: All Z is B. All Y is not B. Therefore, all Y is not Z.
• Problem: From the lack of shared B, nothing more can be logically implied about the features of either Z or Y. Z and Y may in fact agree on the desired outcomes for the question at issue but disagree over the means for achieving the outcomes.

Informal Fallacies

The proposed conclusion is not supported by the premises.

Whereas formal fallacies can be identified by form, informal fallacies are identified by examining the argument's content. There are many subcategories.

Improper Premise Fallacies

Any form of argument in which the conclusion occurs as one of the premises.

Begging the question. Providing what is essentially the conclusion of the argument as a premise. You assume without proof the stand/position that is in question. To "beg the question" is to put forward an argument whose validity requires that its own conclusion is true. Formally, begging the question statements are not structured as an argument and are harder to detect than circular arguments. Some authors consider circular reasoning to be a special case of begging the question. In the following examples, notice that the question at issue answers itself without argument.

• Example: "This whole abortion debate about when human life begins is ridiculous. We should be thinking about the rights of the baby."
• The question at issue: Should with examine when rights begin under the law? Premise: Rights begin after a baby is born. Conclusion: The debate is ridiculous.

Circular reasoning. Formally, circular reasoning differs from begging the question by specifically referring to arguments in which the reasoner simply repeats what they already assumed beforehand in different words without actually arriving at any new conclusion. Circular reasoning is not persuasive because a listener who doubts the conclusion will also doubt the premise that leads to it. This may sound silly, but people make such statements quite often when put under pressure.

• "Whatever is less dense than water will float, because such objects don't sink in water."
• "Of course smoking causes cancer. The smoke from cigarettes is a carcinogen."
• "The rights of the minority are every bit as sacred as the rights of the majority, for the majority's rights have no greater value than those of the minority."
• "Everyone wants the new iPhone because it is the hottest new gadget on the market!"
• Note that this could be factually true in the situation that popularity was the sole driver of consumer desire for the new iPhone. Even so, it is still a fallacy of circular reasoning because its popularity must be logically explainable for reasons other than the conclusion.
• Video example

Loaded question . Asking a question that has an assumption built into it so that it can't be answered without appearing guilty.

• Example: Prosecutor to defendant: "So how did you feel when you murdered your wife?"
• The question at issue: Did the suspect murder his wife? Premise: "you murdered your wife." Conclusion: "you murdered your wife." Possible responses: Any answer that the defendant gives to "how did you feel?" could construed as admission that he murdered his wife. The best response is to point-out the fallacy and refuse to answer the question as stated.

Weak Premise Fallacies

These reach a conclusion from weak premises. Unlike fallacies of relevance, the premises are related to the conclusions and yet only weakly support the conclusions. A faulty generalization is thus produced.

Cherry Picking / Card Stacking. The presentation of only that information or those arguments most favorable to a particular point of view.

• Example: "I'm a really good driver. In the past thirty years, I have gotten only four speeding tickets." (What other kind of tickets has he gotten? How long has he been driving?)

Faulty/Weak analogy. Comparison is carried too far, or the things compared have nothing in common.

• Example: Apples and oranges are both fruit. Both grow on trees. Therefore, apples and oranges taste the same.

Hasty Generalization (from an Unrepresentitve Sample). A judgment is made on the basis of inaccurate or insufficient evidence. They are extremely common because there is often no agreement about what constitutes sufficient evidence. Generalization from one person's experience is a common example of this fallacy.

• Example: "My grandfather smoked four packs of cigarettes a day since age fourteen and lived until age ninety-two. Therefore, smoking really can't be that bad for you."
• Example: "Ducks and geese migrate south for the winter. Therefore, all water-fowl migrate south for the winter."

No True Scotsman . Making what could be called an appeal to purity as a way to dismiss relevant criticisms or flaws of an argument.

• Example: Angus declares that Scotsmen do not put sugar on their porridge, to which Lachlan points out that he is a Scotsman and puts sugar on his porridge. Furious, like a true Scot, Angus yells that no true Scotsman sugars his porridge.

Questionable Cause Fallacies

The primary basis for these errors is either inappropriate deduction (or rejection) of causation or a broader failure to properly investigate the cause of an observed effect.

Correlation Without Causation / Cum Hoc. A faulty assumption that, because there is a correlation between two variables, one caused the other.

• Coincidence. The two variables aren't related at all, but correlate by chance.
• Third Cause. A third factor is the cause of the correlation. Example: Young children who sleep with the light on are much more likely to develop myopia in later life. Therefore, sleeping with the light on causes myopia. (In 1999, this was conclusion was popularized by the media from a study containing such a correlation. It is more likely that myopia has a genetic cause and myopic parents use nightlights because they have poor night vision without their glasses.)
• Wrong direction . Cause and effect are reversed. Example: The faster windmills are observed to rotate, the more wind is observed to be. Therefore wind is caused by the rotation of windmills. Real Life Example: When a country's debt rises above 90% of GDP, growth slows. Therefore, high debt causes slow growth.

Gamblers Fallacy. The incorrect belief that separate, independent events can affect the likelihood of another random event.

• Example: After having multiple children of the same sex, some parents may believe that they are due to have a child of the opposite sex. (In reality, the probability is still 0.5.)

False Cause / Post Hoc. Treating coincidence of one event following another as causation.

• Example: Every time we wash our car, it rains. Therefore, if we wash our car today, it will rain.
• Example: Specific vaccinations are given at the same age that obvious symptoms of autism typically manifest. When some parents see their children diagnosed with autism shortly after receiving vaccinations they assume that the vaccinations caused the autism (even though the autism could have been diagnosed by a professional

Single Cause Fallacy / Causal Oversimplification. It is assumed that there is one, simple cause of an outcome when in reality it may have been caused by a number of only jointly sufficient causes or a third cause.

• Example: The "Gateway Drug Theory" argues that marijuana usage leads to usage of harder drugs and has been a major justification for why marijuana laws should be highly restrictive. However, the same data could be explained by marijuana simply being easier to obtain and therefore more likely to be the first drug tried by people who were likely to become hard drug users for many other reasons such as genetic factors or simple illegality of marijuana making it attractive to risk-taking people.
• Example: Traffic fatalities were cut when the highway speed limit was reduced to 55 mph Therefore, the lower speed limit has resulted in safer highways. (The fact that people are driving less and seat belt laws were also passed may be equally or more important.)

Relevance Fallacies

These are distractions from the argument typically with some distracting sentiment that seems to be relevant but isn't really on-topic. Red Herrings are a specific sub-category Relevance fallacy that is distinguished by an intent to mislead often due the lack of a real argument.

Ad Hominem Argument . Rejection of a person's view on the basis of personal characteristics, background, physical appearance, or other features irrelevant to the argument at issue. Pay close attention to words that question an opponent's character. Examples: slob, prude, moron, embarrassing, stubborn.

Ambiguity . Using double meanings or other ambiguities of language to mislead or misrepresent the truth. Meaning in language can be so slippery that there are at least a dozen sub-fallacies including ambiguous grammar, equivocation, and quoting out of context (a tactic most often encountered on the Internet).

Appeal to Authority. This fallacy happens when we misuse an authority. This misuse of authority can occur in a number of ways. We can cite only authorities — steering conveniently away from other testable and concrete evidence as if expert opinion is always correct. Or we can cite irrelevant authorities, poor authorities, or false authorities.

Appeal to Emotion. The use of non-objective words, phrases, or expressions that arouse emotion having the effect of short-circuiting reason. Common examples include appeals to fear, flattery, outrage, pity, pride, ridicule of opponent's argument, spite, wishful thinking. Emotional appeals are also a powerful tool in propaganda.

• Example: A commercial for a security company that shows someone breaking into a home in the middle of the night.
• Example: "Any intelligent person knows... " (appeal to pride).

Appeal to Nature. Any argument that assumes "natural" things are "good" and "unnatural" things are "bad" is flawed because concepts of the natural, good, and bad are all vague and ambiguous. The person creating the argument can define these in any way that supports their position. Appeals to Nature also employ the begging the question fallacy (above).

• Example: This tobacco ad claims that their product is more natural and thus better for you.
• Example: This ad attempts to convince the reader that margarine, one the most processed foods in a grocery store, is natural and aligns with the readers assumed yearning for a simpler, better life in the country.
• The marketing copy for products in a store like Whole Foods is rife of appeals to Nature. Practice spotting them.

Argument from ignorance / burden of proof. It asserts that a proposition is true because it has not yet been proven false or a proposition is false because it has not yet been proven true. This type of argument asserts a truth and shifts the burden of providing counter-evidence onto someone else. Logically, we should remain skeptical and demand legitimate evidence from the person asserting the proposition.

• Example of two contradictory positions using this fallacy: "No one has ever been able to prove definitively that extra-terrestrials exist, so they must not be real." "No one has ever been able to prove definitively that extra-terrestrials do not exist, so they must be real."
• Video Example

Argument from incredulity (appeal to common sense) . Saying that because one finds something difficult to understand that it's therefore not true.

Association fallacy. Inferring either guilt or honor by association. It is an irrelevant attempt to transfer the qualities of one thing to another by merely invoking them together. Sometimes fallacies of this kind may also be appeals to emotion, hasty generalizations, and/or ad hominem arguments.

• Example: An attractive spokesperson will say that a specific product is good. The attractiveness of the spokesperson gives the product good associations.
• Example: "Galileo was ridiculed in his time but later acknowledged to be right. Likewise, Dr. Andrew Wakefield's work demonstrating that vaccines cause autism will later be recognized as correct too." (Taking an unpopular position is no guarantee of its correctness. Additionally, the two scenarios are not comparable. Galileo was ridiculed by the Catholic Church. His scientific peers generally confirmed his work. In contrast, Dr. Wakefield's scientific peers have failed to replicate his observations and have invalidate his conclusions based on methodological flaws. The source of negative public opinion around Dr. Wakefield derives from valid expert criticism.)

Bandwagon / FOMO. The use of the fear of being "different" or "missing-out" is used to influence behavior.

• Example: "Twenty million people jog for their health. Shouldn't you?

Genetic fallacy . Judging something good or bad on the basis of where it comes from, or from whom it comes.

• Example: "You're not going to wear a wedding ring, are you? Don't you know that the wedding ring originally symbolized ankle chains worn by women to prevent them from running away from their husbands? I would not have thought you would be a party to such a sexist practice." There are numerous motives explaining why people choose to wear wedding rings, but it would be a fallacy to presume those who continue the tradition are promoting sexism. (page 196 of ref)

Ignoring The Question. Digression, obfuscation, or similar techniques are used to avoid answering a question.

• Example: When asked about the possibility of a tax increase, a senator replies: "I have always met my obligations to those I represent."

Missing the point / Irrelevant Conclusion. Presenting an argument that may or may not be logically valid and sound, but whose conclusion fails to address the issue in question.

• Example: The Chewbacca Defense from South Park .

Straw Man Argument. Appearing to refute an opponent's argument by instead creating an oversimplified or extreme version of the argument (a "straw man") and refuting that instead.

Texas sharpshooter . A conclusion is drawn from data with a stress on similarities while ignoring differences. An example is seeing localized patterns where none exist. The name comes from a joke about a Texan who fires some gunshots at the side of a barn, then paints a target centered on the tightest cluster of hits and claims to be a sharpshooter.

Tu Quoque Fallacy. Latin for "you too," is also called the "appeal to hypocrisy" because it distracts from the argument by pointing out hypocrisy in the opponent. This tactic doesn't prove one's point, because even hypocrites can tell the truth.

Informal Fallacies with Multiple Structural Problems

Composition / Division . The fallacy of composition infers that something is true of the whole from the fact that it is true of a part of the whole. The opposite reasoning is the fallacy of division.

False dilemma / false dichotomy / black and white. Reducing an issue to only two possible decisions.

• Example: Either we go to war, or we appear weak.

Middle ground / false compromise / argument to moderation . Arguing that a compromise, or middle point, between two extremes is the truth.

• Example: Holly said that vaccinations caused autism in children, but her scientifically well-read friend Caleb said that this claim had been debunked and proven false. Their friend Alice offered a compromise that vaccinations cause some autism. (ref)

Slippery Slope. Moving from a seemingly benign premise or starting point and working through a number of small steps to an improbable extreme when many other outcomes could have been possible. Although this form of slippery slope is a sub-type of the formal appeal of probability fallacy (it assumes something will occur based on probability and thus breaks rules of formal logic), slippery slope arguments can take on many other forms and should are generally categorized as informal fallacies.

• Video examples: Don't Wake Up In A Roadside Ditch commercial and the children's book If You Give a Mouse a Cookie .

Special pleading . Moving the goalposts to create exceptions when a claim is shown to be false. Applying a double standard, generally to oneself.

"The first principle is that you must not fool yourself – and you are the easiest person to fool." –Richard Feynman

As we examine our assumptions and improve our mental models , we have to confront the reality that we all have inescapable hardwired biases that we cannot change through critical thinking. Because we all have them, science can teach us a lot about our biases. Biases are an inescapable feature of being human. No training will stop you from commiting them. However, learning about them can help you second guess the validity of your judgment, think more critically, consider other points-of-view, and develop empathy for the biases in others.

The operating system of our brains uses biologically evolved shortcuts in our thinking. Many of these shortcuts are useful and essential. However, we have also inherited bugs in the code that make many of our judgments irrational. A cognitive bias is a cognitive shortcut that leads to a loss of objectivity. By learning about some of the most common biases, you can learn and how to avoid falling victim to them. For example many of the biases below occur because the brain tends to find patterns where none exist and uses irrational biases to reduce cognitive dissonance when stressed with contradictory ideas. To learn more, I recommend reading Thinking Fast and Slow and You Are Not So Smart .

Common Cognitive Biases

Anchoring . The first thing you judge influences your judgment of all that follows.

Human minds are associative in nature, so the order in which we receive information helps determine the course of our judgments and perceptions. For instance, the first price offered for a used car sets an 'anchor' price which will influence how reasonable or unreasonable a counter-offer might seem. Even if we feel like an initial price is far too high, it can make a slightly less-than-reasonable offer seem entirely reasonable in contrast to the anchor price.

Be especially mindful of this bias during financial negotiations such as houses, cars, and salaries. The initial price offered has proven to have a significant effect.

Availability heuristic . Your judgments are influenced by what springs most easily to mind.

How recent, emotionally powerful, or unusual your memories are can make them seem more relevant. This, in turn, can cause you to apply them too readily. For instance, when we see news reports about homicides, child abductions, and other terrible crimes it can make us believe that these events are much more common and threatening to us than is actually the case.

Try to gain different perspectives and relevant statistical information rather than relying purely on first judgments and emotive influences.

Barnum effect . You see personal specifics in vague statements by filling in the gaps (e.g. interpreting your horoscope).

Because our minds are given to making connections, it's easy for us to take nebulous statements and find ways to interpret them so that they seem specific and personal. The combination of our egos wanting validation with our strong inclination to see patterns and connections means that when someone is telling us a story about ourselves, we look to find the signal and ignore all the noise.

Psychics, astrologers and others use this bias to make it seem like they're telling you something relevant. Consider how things might be interpreted to apply to anyone, not just you.

Belief bias . You are more likely to accept an argument that supports a conclusion that aligns with his values, beliefs and prior knowledge, while rejecting counter arguments to the conclusion.

It's difficult for us to set aside our existing beliefs to consider the true merits of an argument. In practice this means that our ideas become impervious to criticism, and are perpetually reinforced. Instead of thinking about our beliefs in terms of 'true or false' it's probably better to think of them in terms of probability. For example we might assign a 95%+ chance that thinking in terms of probability will help us think better, and a less than 1% chance that our existing beliefs have no room for any doubt. Thinking probabalistically forces us to evaluate more rationally.

A useful thing to ask is 'when and how did I get this belief?' We tend to automatically defend our ideas without ever really questioning them.

Belief perserverance . When some aspect of your core beliefs is challenged, it can cause you to believe even more strongly.

We can experience being wrong about some ideas as an attack upon our very selves, or our tribal identity. This can lead to motivated reasoning which causes a reinforcement of beliefs, despite disconfirming evidence. Recent research shows that the backfire effect certainly doesn't happen all the time. Most people will accept a correction relating to specific facts, however the backfire effect may reinforce a related or 'parent' belief as people attempt to reconcile a new narrative in their understanding.

"It ain't what you don't know that gets you into trouble. It's what you know for sure that just ain't so." —Mark Twain

Bystander effect . You presume someone else is going to do something in an emergency situation.

When something terrible is happening in a public setting we can experience a kind of shock and mental paralysis that distracts us from a sense of personal responsibility. The problem is that everyone can experience this sense of deindividuation in a crowd. This same sense of losing our sense of self in a crowd has been linked to violent and anti-social behaviors. Remaining self-aware requires some amount of effortful reflection in group situations.

If there's an emergency situation, presume to be the one who will help or call for help. Be the change you want to see in the world.

Confirmation bias . You favor things that confirm your existing beliefs.

We are primed to see and agree with ideas that fit our preconceptions, and to ignore and dismiss information that conflicts with them. You could say that this is the mother of all biases, as it affects so much of our thinking through motivated reasoning. To help counteract its influence we ought to presume ourselves wrong until proven right. "When you are studying any matter, or considering any philosophy, ask yourself only what are the facts and what is the truth that the facts bear out. Never let yourself be diverted either by what you wish to believe or by what you think would have beneficent social effects if it were believed." – Bertrand Russell

Think of your ideas and beliefs as software you're actively trying to find problems with rather than things to be defended.

Curse of knowledge . Once you understand something you presume it to be obvious to everyone.

Things makes sense once they make sense, so it can be hard to remember why they didn't. We build complex networks of understanding and forget how intricate the path to our available knowledge really is. This bias is closely related to the hindsight bias wherein you will tend to believe that an event was predictable all along once it has occurred. We have difficulty reconstructing our own prior mental states of confusion and ignorance once we have clear knowledge.

When teaching someone something new, go slow and explain like they're ten years old (without being patronizing). Repeat key points and facilitate active practice to help embed knowledge.

Declinism . You remember the past as better than it was, and expect the future to be worse than it will likely be.

Despite living in the most peaceful and prosperous time in history, many people believe things are getting worse. The 24 hour news cycle, with its reporting of overtly negative and violent events, may account for some of this effect. We can also look to the generally optimistic view of the future in the early 20th century as being shifted to a dystopian and apocalyptic expectation after the world wars, and during the cold war. The greatest tragedy of this bias may be that our collective expectation of decline may contribute to a real-world self-fulfilling prophecy. For some real data,

Instead of relying on nostalgic impressions of how great things used to be, use measurable metrics such as life expectancy, levels of crime and violence, and prosperity statistics.

Dunning-Kruger effect . The more you know, the less confident you're likely to be. The less you know, the more confident you are likely to be.

Because experts know just how much they don't know, they tend to underestimate their ability; but it's easy to be over-confident when you have only a simple idea of how things are. Try not to mistake the cautiousness of experts as a lack of understanding, nor to give much credence to lay-people who appear confident but have only superficial knowledge.

"The whole problem with the world is that fools and fanatics are so certain of themselves, yet wiser people so full of doubts." —Bertrand Russell

Framing effect . You allow yourself to be unduly influenced by context and delivery.

We all like to think that we think independently, but the truth is that all of us are, in fact, influenced by delivery, framing and subtle cues. This is why the ad industry is a thing, despite almost everyone believing they're not affected by advertising messages. The phrasing of how a question is posed, such as for a proposed law being voted on, has been shown to have a significant effect on the outcome.

Only when we have the intellectual humility to accept the fact that we can be manipulated, can we hope to limit how much we are. Try to be mindful of how things are being put to you.

Fundamental attribution error . You judge others on their character, but yourself on the situation.

If you haven't had a good night's sleep, you know why you're being a bit slow; but if you observe someone else being slow you don't have such knowledge and so you might presume them to just be a slow person. Because of this disparity in knowledge we often overemphasize the influence of circumstance for our own failings, as well as underestimating circumstantial factors to explain other people's problems.

It's not only kind to view others' situations with charity, it's more objective too. Be mindful to also err on the side of taking personal responsibility rather than justifying and blaming.

Groupthink . You let the social dynamics of a group situation override the best outcomes.

Dissent can be uncomfortable and dangerous to one's social standing, and so often the most confident or first voice will determine group decisions. Because of the Dunning-Kruger effect, the most confident voices are also often the most ignorant.

Rather than openly contradicting others, seek to facilitate objective means of evaluation and critical thinking practices as a group activity.

In-group bias . You unfairly favor those who belong to your group.

We presume that we're fair and impartial, but the truth is that we automatically favor those who are most like us, or belong to our groups. This blind tribalism has evolved to strengthen social cohesion, however in a modern and multicultural world it can have the opposite effect.

Try to imagine yourself in the position of those in out-groups; whilst also attempting to be dispassionate when judging those who belong to your in-groups.

Just world hypothesis . Your preference for justice makes you presume it exists.

A world in which people don't always get what they deserve, hard work doesn't always pay off, and injustice happens is an uncomfortable one that threatens our preferred narrative. However, it is also the reality. This bias is often manifest in ideas such as 'what goes around comes around' or an expectation of 'karmic balance', and can also lead to blaming victims of crime and circumstance.

A more just world requires understanding rather than blame. Remember that everyone has their own life story, we're all fallible, and bad things happen to good people.

Halo effect . How much you like someone, or how attractive they are, influences your other judgments of them.

Our judgments are associative and automatic, and so if we want to be objective we need to consciously control for irrelevant influences. This is especially important in a professional setting. Things like attractiveness can unduly influence issues as important as a jury deciding someone's guilt or innocence. If someone is successful or fails in one area, this can also unfairly color our expectations of them in another area.

If you notice that you're giving consistently high or low marks across the board, it's worth considering that your judgment may be suffering from the halo effect.

Negativity bias . You allow negative things to disproportionately influence your thinking.

The pain of loss and hurt are felt more keenly and persistently than the fleeting gratification of pleasant things. We are primed for survival, and our aversion to pain can distort our judgment for a modern world. In an evolutionary context it makes sense for us to be heavily biased to avoid threats, but because this bias affects our judgments in other ways it means we aren't giving enough weight to the positives.

Pro-and-con lists, as well as thinking in terms of probabilities, can help you evaluate things more objectively than relying on a cognitive impression.

Optimism bias . You overestimate the likelihood of positive outcomes.

There can be benefits to a positive attitude, but it's unwise to allow such an attitude to adversely affect our ability to make rational judgments (they're not mutually exclusive). Wishful thinking can be a tragic irony insofar as it can create more negative outcomes, such as in the case of problem gambling.

If you make rational, realistic judgments you'll have a lot more to feel positive about.

Pessimism bias . You overestimate the likelihood of negative outcomes.

Pessimism is often a defense mechanism against disappointment, or it can be the result of depression and anxiety disorders. Pessimists often justify their attitude by saying that they'll either be vindicated or pleasantly surprised, however a pessimistic attitude may also limit potential positive outcomes. It should also be noted that pessimism is something very different to skepticism: the latter is a rational approach that seeks to remain impartial, while the former is an expectation of bad outcomes.

Perhaps the worst aspect of pessimism is that even if something good happens, you'll probably feel pessimistic about it anyway.

Placebo effect . If you believe you're taking medicine it can sometimes 'work' even if it's fake.

The placebo effect can work for stuff that our mind influences (such as pain) but not so much for things like viruses or broken bones. Things like the size and color of pills can have an influence on how strong the effect is and may even result in real physiological outcomes. We can also falsely attribute getting better to an inert substance simply because our immune system has fought off an infection i.e. we would have recovered in the same amount of time anyway.

Homeopathy, acupuncture, and many other forms of natural 'medicine' have been proven to be no more effective than placebo. Keep a healthy body and bank balance by using evidence-based medicine from a qualified doctor.

Reactance . You'd rather do the opposite of what someone is trying to make you do.

When we feel our liberty is being constrained, our inclination is to resist, however in doing so we can over-compensate. While blind conformity is far from an ideal way to approach things, neither is being a knee-jerk contrarian.

Be careful not to lose objectivity when someone is being coercive/manipulative, or trying to force you do something. Wisdom springs from reflection, folly from reaction.

Self-serving bias . You believe your failures are due to external factors, yet you're responsible for your successes.

Many of us enjoy unearned privileges, luck and advantages that others do not. It's easy to tell ourselves that we deserve these things, whilst blaming circumstance when things don't go our way. Our desire to protect and exalt our own egos is a powerful force in our psychology. Fostering humility can help countermand this tendency, whilst also making us nicer humans.

When judging others, be mindful of how this bias interacts with the just-world hypothesis, fundamental attribution error, and the in-group bias.

Spotlight effect . You overestimate how much people notice how you look and act.

Most people are much more concerned about themselves than they are about you. Absent overt prejudices, people generally want to like and get along with you as it gives them validation too. It's healthy to remember that although we're the main character in the story of our own life, everyone else is center-stage in theirs too. This bias causes so many people to attribute to motives of malice when there may have been a simple misunderstanding.

Instead of worrying about how you're being judged, consider how you make others feel. They'll remember this much more, and you'll make the world a better place.

Sunk cost fallacy . You irrationally cling to things that have already cost you something.

When we've invested our time, money, or emotion into something, it hurts us to let it go. This aversion to pain can distort our better judgment and cause us to make unwise investments. A sunk cost means that we can't recover it, so it's rational to disregard the cost when evaluating. For instance, if you've spent money on a meal but you only feel like eating half of it, it's irrational to continue to stuff your face just because 'you've already paid for it'; especially considering the fact that you're wasting actual time doing so.

To regain objectivity, ask yourself: had I not already invested something, would I still do so now? What would I counsel a friend to do if they were in the same situation?

Discipline-specific misconceptions often made in arguments

• Everything is made of chemicals. Avoid saying that chemicals are "unnatural" or "dangerous."
• Medicine is not strictly a scientific profession. It can be, but is not required to be. A lot of what doctors actually do is non-scientific. The art of medicine is just as important as the science. For example, simply creating the feeling that the doctor understands a patient's problem and shares the patient's values increases the likelihood of positive health outcomes. Avoid the assumption that doctors are scientists.
• It can be just as dangerous to over-medicalize mental illness as it is to moralize about it. This is why recent writers like Johann Hari focus on non-medical aspects of addiction. From his popular TED Talk you might conclude that he dismisses the model that addiction is a physical medical condition. But if you read his book Chasing The Scream, you would learn that he actually accepts the medical model as part of a bigger picture, considers it mainstream in medicine, and has chosen to make a case for the significance of the social contributors to addiction. From Hari's point-of-view, the American medical system is incentivized to offer the lowest-cost quick fix (like a pill) so treating addiction as a solely medical condition can lead to oversimplified treatments that are less effective that complex, tailored treatments that consider an addict's social circumstances. His slogan, "the opposite of addiction is connection," is effective because it is memorable, however it is just as oversimplified as the purely medical model.

Neuroscience

• Everything alters the brain. Reading these words physically alters your brain by creating memories. In your writing, it is not enough to say the "repeated cocaine use alters the brain." Be specific about how the brain is altered and what the consequence is.
• Every human quality we care about has a dual nature . On one hand its character is limited by biology and the laws of physics. And on the other hand its experience is shaped by culture and personal experience. Thinkers who amplify the importance of biology in shaping behavior are making essentialist arguments. Thinkers who focus on the culturally constructed nature of a human quality are making constructivist arguments. It is important to study and understand the essential and constructed qualities of such concepts as gender, intelligence, athletic ability, extroversion, honesty, mental illness, etc. By separating "nature" from "nurture" we can learn how each contributes to the total phenomenon. But by taking either position, without acknowledging the role of the other, ignores the complexity of reality and leads to weak models. Avoid such overly simplifying models in your own thinking and question them in others.
• Avoid the words "prove," "proven," "proof," etc. Outside of mathematics, nothing is actually "proven" in life. Instead of writing, "It's been proven..." try "It's been observed..." or "Scientists have support for the theory..."

A longer list of misconceptions

Wikipedia has a great list of common misconceptions on many other topics.

Writing Tips

General style tips .

• For essays, refer to the MLA Writing guidelines.
• For scientific and technical writing, refer to the ACS Style Guide .

Citing and Referencing

• If you do not reference a fact in your writing, assume that a critical thinker will give it low likely hood of being true.
• When you quote someone, state their title and credentials. Give context to who they are to help your reader determine if the person being quoted is trustworthy and/or qualified.
• Cite the page number when citing a book.
• Avoid citing websites whenever possible. With the exception of a few online academic journals, assume that anything published online may be gone tomorrow and your reader will not be able to find it.
• A website is not a journal. Before citing a website, try to locate a print citation.
• Google is not a dictionary. If you cite a definition you got from Google, visit the "Google Dictionary" Wikipedia entry to discover who their current content provider is for definitions.
• Google is not a book publisher. Books you find in Google Books, were published somewhere else. Check the title page.

Presenting Information

• When you quote someone , always explain who they are. If they are an expert or researcher, state their qualifications and connect them to reputable organizations that sponsor their work. Doing this makes your writing more persuasive and makes it easier for your reader to research this person to come to their own conclusions.
• Example: "Michael Kuhar, an addiction researcher at the Emory University School of Medicine, explains that..."
• Give credit to the primary source of an idea , even if you encountered it in a secondary source. You should make an effort to read the primary source before quoting it's information and conclusion. If you are unable to, then be clear that you are repeating another author's interpretation of the primary source.

Glossary 

Why are precise definitions of concepts and ideas important.

Humans think within concepts or ideas. We can never achieve command over our thoughts unless we learn how to achieve command over our concepts or ideas. Thus we must learn how to identify the concepts or ideas we are using, contrast them with alternative concepts or ideas, and clarify what we include and exclude by means of them. For example, most people say they believe strongly in democracy, but few can clarify with examples what that word does and does not imply. Most people confuse the meaning of words with cultural associations, with the result that "democracy" means to people whatever we do in running our government—any country that is different is undemocratic. We must distinguish the concepts implicit in the English language from the psychological associations surrounding that concept in a given social group or culture. The failure to develop this ability is a major cause of uncritical thought and selfish critical thought.

• Consider alternative concepts
• Consider that others may be using alternative definitions of concepts
• Make sure you are using concepts with care and precision
• If you suspect a difference in definitions betwen you and another person, attempt to clarify each other's meaning

Fundamental Definitions

Argument. An argument is a series of statements that reach a conclusion that is intended to reveal the degree of truth of another statement. Arguments begin with premises (kinds of information) that are related to each other using valid forms of reasoning (a process) to arrive at the logical conclusion , new information. A logical conclusion is a new kind of information that is true in light of premises being true (if the premises are all facts) or seeming to be true (if the premises contain opinions).

Critical thinker. A well-cultivated critical thinker raises vital questions and problems, formulating them clearly and precisely; gathers and assesses relevant information, using abstract ideas to interpret it effectively; comes to well-reasoned conclusions and solutions, testing them against relevant criteria and standards; thinks open mindedly within alternative systems of thought, recognizing and assessing, as need be, their assumptions, implications, and practical consequences; is committed to overcoming our native confirmation bias, egocentrism, and sociocentrism; and communicates effectively with others in figuring out solutions to complex problems. ( https://www.criticalthinking.org )

Concept . A concept is a generalized idea of a thing or of a class of things that make up the fundamental building blocks of thoughts. Concepts are your brain's representations of past experiences (Barsalou 2003 and 2008). Using concepts, your brain groups some things together and separates others. You can look at three mounds of dirt and perceive two of them as "Hills" and one as a "Mountain," based on your concepts. The dominant psychological/philosophical school of thought known as constructivism assumes that the world like a sheet of pastry and your concepts are cookie cutters that carve boundaries, not because the boundaries are natural , but because they're useful or desirable . These boundaries have physical limitations of course; you'd never perceive a mountain as a lake (Boghossian 2006).

Empirical. Relying on or derived from experiment, observation, or experience as opposed to conceptual or evaluative.

Idea. An idea is anything existing in the mind as an object of knowledge or thought based on concepts regarding particular instances of a class of things. The word specifically refers to something conceived in the mind or imagined. An idea can be specific whereas concepts are generalized.

Thought refers to any idea, whether or not expressed, that occurs to the mind in reasoning or contemplation.

Additional Definitions

For additional definitions of the objects of mind and parts of thinking, I suggest this glossary: https://www.criticalthinking.org/pages/glossary-of-critical-thinking-terms/4

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What is Critical Thinking?

Critical Thinking Definition

September 2, 2005, by The Critical Thinking Co. Staff

The Critical Thinking Co.™ "Critical thinking is the identification and evaluation of evidence to guide decision making. A critical thinker uses broad in-depth analysis of evidence to make decisions and communicate their beliefs clearly and accurately."

Other Definitions of Critical Thinking: Robert H. Ennis , Author of The Cornell Critical Thinking Tests "Critical thinking is reasonable, reflective thinking that is focused on deciding what to believe and do."

A SUPER-STREAMLINED CONCEPTION OF CRITICAL THINKING Robert H. Ennis, 6/20/02

Assuming that critical thinking is reasonable reflective thinking focused on deciding what to believe or do, a critical thinker:

1. Is open-minded and mindful of alternatives 2. Tries to be well-informed 3. Judges well the credibility of sources 4. Identifies conclusions, reasons, and assumptions 5. Judges well the quality of an argument, including the acceptability of its reasons, assumptions, and evidence 6. Can well develop and defend a reasonable position 7. Asks appropriate clarifying questions 8. Formulates plausible hypotheses; plans experiments well 9. Defines terms in a way appropriate for the context 10. Draws conclusions when warranted, but with caution 11. Integrates all items in this list when deciding what to believe or do

Critical Thinkers are disposed to:

1. Care that their beliefs be true, and that their decisions be justified; that is, care to "get it right" to the extent possible. This includes the dispositions to

a. Seek alternative hypotheses, explanations, conclusions, plans, sources, etc., and be open to them b. Endorse a position to the extent that, but only to the extent that, it is justified by the information that is available c. Be well informed d. Consider seriously other points of view than their own

2. Care to present a position honestly and clearly, theirs as well as others'. This includes the dispositions to

a. Be clear about the intended meaning of what is said, written, or otherwise communicated, seeking as much precision as the situation requires b. Determine, and maintain focus on, the conclusion or question c. Seek and offer reasons d. Take into account the total situation e. Be reflectively aware of their own basic beliefs

3. Care about the dignity and worth of every person (a correlative disposition). This includes the dispositions to

a. Discover and listen to others' view and reasons b. Avoid intimidating or confusing others with their critical thinking prowess, taking into account others' feelings and level of understanding c. Be concerned about others' welfare

Critical Thinking Abilities:

Ideal critical thinkers have the ability to (The first three items involve elementary clarification.)

1. Focus on a question

a. Identify or formulate a question b. Identify or formulate criteria for judging possible answers c. Keep the situation in mind

2. Analyze arguments

a. Identify conclusions b. Identify stated reasons c. Identify unstated reasons d. Identify and handle irrelevance e. See the structure of an argument f. Summarize

3. Ask and answer questions of clarification and/or challenge, such as,

a. Why? b. What is your main point? c. What do you mean by…? d. What would be an example? e. What would not be an example (though close to being one)? f. How does that apply to this case (describe a case, which might well appear to be a counter example)? g. What difference does it make? h. What are the facts? i. Is this what you are saying: ____________? j. Would you say some more about that?

(The next two involve the basis for the decision.)

4. Judge the credibility of a source. Major criteria (but not necessary conditions):

a. Expertise b. Lack of conflict of interest c. Agreement among sources d. Reputation e. Use of established procedures f. Known risk to reputation g. Ability to give reasons h. Careful habits

5. Observe, and judge observation reports. Major criteria (but not necessary conditions, except for the first):

a. Minimal inferring involved b. Short time interval between observation and report c. Report by the observer, rather than someone else (that is, the report is not hearsay) d. Provision of records. e. Corroboration f. Possibility of corroboration g. Good access h. Competent employment of technology, if technology is useful i. Satisfaction by observer (and reporter, if a different person) of the credibility criteria in Ability # 4 above.

(The next three involve inference.)

6. Deduce, and judge deduction

a. Class logic b. Conditional logic c. Interpretation of logical terminology in statements, including (1) Negation and double negation (2) Necessary and sufficient condition language (3) Such words as "only", "if and only if", "or", "some", "unless", "not both".

7. Induce, and judge induction

a. To generalizations. Broad considerations: (1) Typicality of data, including sampling where appropriate (2) Breadth of coverage (3) Acceptability of evidence b. To explanatory conclusions (including hypotheses) (1) Major types of explanatory conclusions and hypotheses: (a) Causal claims (b) Claims about the beliefs and attitudes of people (c) Interpretation of authors’ intended meanings (d) Historical claims that certain things happened (including criminal accusations) (e) Reported definitions (f) Claims that some proposition is an unstated reason that the person actually used (2) Characteristic investigative activities (a) Designing experiments, including planning to control variables (b) Seeking evidence and counter-evidence (c) Seeking other possible explanations (3) Criteria, the first five being essential, the sixth being desirable (a) The proposed conclusion would explain the evidence (b) The proposed conclusion is consistent with all known facts (c) Competitive alternative explanations are inconsistent with facts (d) The evidence on which the hypothesis depends is acceptable. (e) A legitimate effort should have been made to uncover counter-evidence (f) The proposed conclusion seems plausible

8. Make and judge value judgments: Important factors:

a. Background facts b. Consequences of accepting or rejecting the judgment c. Prima facie application of acceptable principles d. Alternatives e. Balancing, weighing, deciding

(The next two abilities involve advanced clarification.)

9. Define terms and judge definitions. Three dimensions are form, strategy, and content.

a. Form. Some useful forms are: (1) Synonym (2) Classification (3) Range (4) Equivalent expression (5) Operational (6) Example and non-example b. Definitional strategy (1) Acts (a) Report a meaning (b) Stipulate a meaning (c) Express a position on an issue (including "programmatic" and "persuasive" definitions) (2) Identifying and handling equivocation c. Content of the definition

10. Attribute unstated assumptions (an ability that belongs under both clarification and, in a way, inference)

(The next two abilities involve supposition and integration.)

11. Consider and reason from premises, reasons, assumptions, positions, and other propositions with which they disagree or about which they are in doubt -- without letting the disagreement or doubt interfere with their thinking ("suppositional thinking")

12. Integrate the other abilities and dispositions in making and defending a decision

(The first twelve abilities are constitutive abilities. The next three are auxiliary critical thinking abilities: Having them, though very helpful in various ways, is not constitutive of being a critical thinker.)

13. Proceed in an orderly manner appropriate to the situation. For example:

a. Follow problem solving steps b. Monitor one's own thinking (that is, engage in metacognition) c. Employ a reasonable critical thinking checklist

14. Be sensitive to the feelings, level of knowledge, and degree of sophistication of others

15. Employ appropriate rhetorical strategies in discussion and presentation (orally and in writing), including employing and reacting to "fallacy" labels in an appropriate manner.

Examples of fallacy labels are "circularity," "bandwagon," "post hoc," "equivocation," "non sequitur," and "straw person."

Dewey, John Critical thinking is "active, persistent, and careful consideration of any belief or supposed form of knowledge in the light of the grounds that support it and the further conclusions to which it tends (Dewey 1933: 118)."

Glaser (1) an attitude of being disposed to consider in a thoughtful way the problems and subjects that come within the range of one's experiences, (2) knowledge of the methods of logical inquiry and reasoning, and (3) some skill in applying those methods. Critical thinking calls for a persistent effort to examine any belief or supposed form of knowledge in the light of the evidence that supports it and the further conclusions to which it tends. (Glaser 1941, pp. 5-6).

Abilities include: "(a) to recognize problems, (b) to find workable means for meeting those problems, (c) to gather and marshal pertinent information, (d) to recognize unstated assumptions and values, (e) to comprehend and use language with accuracy, clarity and discrimination, (f) to interpret data, (g) to appraise evidence and evaluate statements, (h) to recognize the existence of logical relationships between propositions, (i) to draw warranted conclusions and generalizations, (j) to put to test the generalizations and conclusions at which one arrives, (k) to reconstruct one's patterns of beliefs on the basis of wider experience; and (l) to render accurate judgments about specific things and qualities in everyday life." (p.6)

MCC General Education Initiatives "Critical thinking includes the ability to respond to material by distinguishing between facts and opinions or personal feelings, judgments and inferences, inductive and deductive arguments, and the objective and subjective. It also includes the ability to generate questions, construct, and recognize the structure of arguments, and adequately support arguments; define, analyze, and devise solutions for problems and issues; sort, organize, classify, correlate, and analyze materials and data; integrate information and see relationships; evaluate information, materials, and data by drawing inferences, arriving at reasonable and informed conclusions, applying understanding and knowledge to new and different problems, developing rational and reasonable interpretations, suspending beliefs and remaining open to new information, methods, cultural systems, values and beliefs and by assimilating information."

Nickerson, Perkins and Smith (1985) "The ability to judge the plausibility of specific assertions, to weigh evidence, to assess the logical soundness of inferences, to construct counter-arguments and alternative hypotheses."

Moore and Parker , Critical Thinking Critical Thinking is "the careful, deliberate determination of whether we should accept, reject, or suspend judgment about a claim, and the degree of confidence with which we accept or reject it."

Delphi Report "We understand critical thinking to be purposeful, self-regulatory judgment which results in interpretation, analysis, evaluation, and inference, as well as explanation of the evidential, conceptual, methodological, criteriological, or contextual considerations upon which that judgment is based. CT is essential as a tool of inquiry. As such, CT is a liberating force in education and a powerful resource in one's personal and civic life. While not synonymous with good thinking, CT is a pervasive and self-rectifying human phenomenon. The ideal critical thinker is habitually inquisitive, well-informed, trustful of reason, open-minded, flexible, fair-minded in evaluation, honest in facing personal biases, prudent in making judgments, willing to reconsider, clear about issues, orderly in complex matters, diligent in seeking relevant information, reasonable in the selection of criteria, focused in inquiry, and persistent in seeking results which are as precise as the subject and the circumstances of inquiry permit. Thus, educating good critical thinkers means working toward this ideal. It combines developing CT skills with nurturing those dispositions which consistently yield useful insights and which are the basis of a rational and democratic society."

A little reformatting helps make this definition more comprehensible:

We understand critical thinking to be purposeful, self-regulatory judgment which results in

• interpretation

as well as explanation of the

• methodological
• criteriological

considerations upon which that judgment is based.

Francis Bacon (1605) "For myself, I found that I was fitted for nothing so well as for the study of Truth; as having a mind nimble and versatile enough to catch the resemblances of things … and at the same time steady enough to fix and distinguish their subtler differences; as being gifted by nature with desire to seek, patience to doubt, fondness to meditate, slowness to assert, readiness to consider, carefulness to dispose and set in order; and as being a man that neither affects what is new nor admires what is old, and that hates every kind of imposture."

A shorter version is "the art of being right."

Or, more prosaically: critical thinking is "the skillful application of a repertoire of validated general techniques for deciding the level of confidence you should have in a proposition in the light of the available evidence."

HELPFUL REFERENCE: http://plato.stanford.edu/entries/logic-informal/

Critical Thinking

I. definition.

Critical thinking is the ability to reflect on (and so improve ) your thoughts, beliefs, and expectations. It’s a combination of several skills and habits such as:

Curiosity : the desire for knowledge and understanding

Curious people are never content with their current understanding of the world, but are driven to raise questions and pursue the answers. Curiosity is endless — the better you understand a given topic, the more you realize how much more there is to learn!

Humility : or the recognition that your own understanding is limited

This is closely connected to curiosity — if you’re arrogant and think you know everything already, then you have no reason to be curious. But a humble person always recognizes the limitations and gaps in their knowledge . This makes them more receptive to information, better listeners and learners.

Skepticism : a suspicious attitude toward what other people say

Skepticism means you always demand evidence and don’t simply accept what others tell you. At the same time, skepticism has to be inwardly focused as well! You have to be equally skeptical of your own beliefs and instincts as you are of others’.

Rationality or logic: The formal skills of logic are indispensable for critical thinkers

Skepticism keeps you on the lookout for bad arguments, and rationality helps you figure out exactly why they’re bad. But rationality also allows you to identify good arguments when you see them, and then to move beyond them and understand their further implications.

Creativity: or the ability to come up with new combinations of ideas

It’s not enough to just be skeptical and knock the holes in every argument that you hear. Sooner or later you have to come up with your own ideas, your own solutions, and your own visions. That requires a creative and independent mind, but one that is also capable of listening and learning.

Empathy : the ability to see things from another person’s perspective

Too often, people talk about critical thinkers as though they’re solitary explorers, forging their own path through the jungle of ideas without help from others. But this isn’t true at all. Real critical thinking means you constantly engage with other people, listen to what they have to say, and try to imagine how they see the world. By seeing things from someone else’s perspective, you can generate far more new ideas than you could by relying on your own knowledge alone.

II. Examples

Although video games are sometimes simply a passive way to enjoy yourself, they sometimes rely on critical thinking skills. This is particularly true of puzzle games and role playing games (RPGs) that present your character with puzzles at critical moments. For example, at one stage in the classic RPG Neverwinter Nights , your character has the option to serve as a juror on another character’s trial. In order to save the innocent man, you have to talk to people throughout the town and, using a combination of empathy and skepticism, figure out what really happened.

In one episode of South Park , Cartman becomes obsessed with conspiracy theories and sings a song about needing to think for himself and find out the truth. The show is poking fun at conspiracy theorists, who often think that they are exercising critical thinking when in fact they are simply exercising too much skepticism towards common sense and popular beliefs, and not enough skepticism towards new, unnecessarily complicated explanations.

III. Critical Thinking vs. Traditional Thinking

Critical thinking, in the history of modern Western thought, is strongly associated with the Enlightenment, the period when European and American philosophers decided to approach the world with a rational eye, rejecting blind faith and questioning traditional authority. It was this moment in history that gave us modern medicine, democracy , and the early forms of industrial technology.

At the same time, the Enlightenment also came with many downsides, particularly the fact that it was so hostile to tradition. This hostility is understandable given the state of Europe at the time — ripped apart by bloody conflict between different religions, and oppressed by traditional monarchs who rooted their power in that of the Church. Enlightenment thinkers understandably rejected traditional thinking, holding it responsible for all this violence and injustice. But still, the Enlightenment sometimes went too far in the opposite direction. After all, rejecting tradition just for the sake of rejecting it is not really any better than accepting tradition just for the sake of accepting it! Traditions provide valuable resources for critical thinking, and without them it would be impossible. Think about this: the English language is a tradition, and without it you wouldn’t be sitting there reading these (hopefully useful) words about critical thinking!

So critical thinking absolutely depends on traditions. There’s no question that critical thinking means something more than just accepting traditions; but it doesn’t mean you necessarily reject them, either. It just means that you’re not blindly following tradition for its own sake ; rather, your relationship to your tradition is based on humility, creativity, skepticism, and all the other attributes of critical thinking.

IV. Quotes about Critical Thinking

“If I have seen further than others, it is because I have stood on the shoulders of giants.” (Isaac Newton)

Until Einstein, no physicist was ever more influential than Isaac Newton. Through curiosity and probable skepticism, he not only worked out the basic rules for matter and energy in the universe — he also realized that the force causing objects to fall was the same as the force causing celestial objects to orbit around each other (thus discovering the modern theory of gravity). He was also known for having a big ego and being a little arrogant with those he considered beneath his intellect — but even Newton had enough humility to recognize that he wasn’t doing it alone. He was deeply indebted to the whole tradition of scientists that had come before him — Europeans, Greeks, Arabs, Indians, and all the rest.

“It seems to me what is called for is an exquisite balance between two conflicting needs: the most skeptical scrutiny of all hypotheses… and at the same time a great openness to new ideas. Obviously those two modes of thought are in some tension. But if you are able to exercise only one of these modes, whichever one it is, you’re in deep trouble.” (Carl Sagan, The Burden of Skepticism )

In this quote, Carl Sagan offers a sensitive analysis of a tension within the idea of critical thinking. He points out that skepticism is extremely important to critical thinking, but at the same time it can go too far and become an obstacle. Notice, too, that you could replace the word “new” with “old” in this quote and it would still make sense. Critical thinkers need to be both open to new ideas and skeptical of them; similarly, they need to have a balanced attitude toward old and traditional ideas as well.

V. The History and Importance of Critical Thinking

Critical thinking has emerged as a cultural value in various times and places, from the Islamic scholars of medieval Central Asia to the secular philosophers of 18th-century America or the scientists and engineers of 21st-century Japan. In each case, critical thinking has taken a slightly different form, sometimes emphasizing skepticism above the other dimensions (as occurred in the European Enlightenment), sometimes emphasizing other dimensions such as creativity or rationality.

Today, many leaders in science, education, and business worry that we are seeing a decline in critical thinking. Education around the world has turned increasingly toward standardized testing and the mechanical memorization of facts, an approach that doesn’t leave time for critical thinking or creative arts. Some politicians view critical and creative education as a waste of time, believing that education should only focus on job skills and nothing else — an attitude which clearly overlooks the fact that critical thinking is an important job skill for everyone from auto mechanics to cognitive scientists.

a. Creativity

b. Skepticism

d. These are all dimensions of critical thinking

a. They are opposites

b. They are synonyms

c. They are in tension, but not incompatible

d. None of the above

a. The Enlightenment

b. The Renaissance

c. The current era

d. All of the above

a. Being constantly skeptical

b. Not being skeptical

c. Having a balance between too much skepticism and too little

d. No relation to skepticism

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Ideas to Action (i2a)

• Paul-Elder Critical Thinking Framework

Critical thinking is that mode of thinking – about any subject, content, or problem — in which the thinker improves the quality of his or her thinking by skillfully taking charge of the structures inherent in thinking and imposing intellectual standards upon them. (Paul and Elder, 2001). The Paul-Elder framework has three components:

• The elements of thought (reasoning)
• The  intellectual standards that should be applied to the elements of reasoning
• The intellectual traits associated with a cultivated critical thinker that result from the consistent and disciplined application of the intellectual standards to the elements of thought

According to Paul and Elder (1997), there are two essential dimensions of thinking that students need to master in order to learn how to upgrade their thinking. They need to be able to identify the "parts" of their thinking, and they need to be able to assess their use of these parts of thinking.

Elements of Thought (reasoning)

The "parts" or elements of thinking are as follows:

• All reasoning has a purpose
• All reasoning is an attempt to figure something out, to settle some question, to solve some problem
• All reasoning is based on assumptions
• All reasoning is done from some point of view
• All reasoning is based on data, information and evidence
• All reasoning is expressed through, and shaped by, concepts and ideas
• All reasoning contains inferences or interpretations by which we draw conclusions and give meaning to data
• All reasoning leads somewhere or has implications and consequences

Universal Intellectual Standards

The intellectual standards that are to these elements are used to determine the quality of reasoning. Good critical thinking requires having a command of these standards. According to Paul and Elder (1997 ,2006), the ultimate goal is for the standards of reasoning to become infused in all thinking so as to become the guide to better and better reasoning. The intellectual standards include:

Intellectual Traits

Consistent application of the standards of thinking to the elements of thinking result in the development of intellectual traits of:

• Intellectual Humility
• Intellectual Courage
• Intellectual Empathy
• Intellectual Autonomy
• Intellectual Integrity
• Intellectual Perseverance
• Confidence in Reason
• Fair-mindedness

Characteristics of a Well-Cultivated Critical Thinker

Habitual utilization of the intellectual traits produce a well-cultivated critical thinker who is able to:

• Raise vital questions and problems, formulating them clearly and precisely
• Gather and assess relevant information, using abstract ideas to interpret it effectively
• Come to well-reasoned conclusions and solutions, testing them against relevant criteria and standards;
• Think open-mindedly within alternative systems of thought, recognizing and assessing, as need be, their assumptions, implications, and practical consequences; and
• Communicate effectively with others in figuring out solutions to complex problems

Paul, R. and Elder, L. (2010). The Miniature Guide to Critical Thinking Concepts and Tools. Dillon Beach: Foundation for Critical Thinking Press.

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Critical Thinking in Everyday Life: 9 Strategies

• Developing as Rational Persons: Viewing Our Development in Stages
• How to Study and Learn (Part One)
• How to Study and Learn (Part Two)
• How to Study and Learn (Part Three)
• How to Study and Learn (Part Four)
• The Art of Close Reading (Part One)
• The Art of Close Reading (Part Two)
• The Art of Close Reading (Part Three)
• Looking To The Future With a Critical Eye: A Message for High School Graduates
• Becoming a Critic Of Your Thinking
• For Young Students (Elementary/K-6)

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In this article, we will explain 9 strategies that any motivated person can use to develop as a thinker. As we explain the strategy, we will describe it as if we were talking directly to such a person. Further details to our descriptions may need to be added for those who know little about critical thinking. Here are the 9:

There is nothing magical about our ideas. No one of them is essential. Nevertheless, each represents a plausible way to begin to do something concrete to improve thinking in a regular way. Though you probably can’t do all of these at the same time, we recommend an approach in which you experiment with all of these over an extended period of time.

First Strategy: Use “Wasted” Time. All humans waste some time; that is, fail to use all of their time productively or even pleasurably. Sometimes we jump from one diversion to another, without enjoying any of them. Sometimes we become irritated about matters beyond our control. Sometimes we fail to plan well causing us negative consequences we could easily have avoided (for example, we spend time unnecessarily trapped in traffic — though we could have left a half hour earlier and avoided the rush). Sometimes we worry unproductively. Sometimes we spend time regretting what is past. Sometimes we just stare off blankly into space.

The key is that the time is “gone” even though, if we had thought about it and considered our options, we would never have deliberately spent our time in the way we did. So why not take advantage of the time you normally waste by practicing your critical thinking during that otherwise wasted time? For example, instead of sitting in front of the TV at the end of the day flicking from channel to channel in a vain search for a program worth watching, spend that time, or at least part of it, thinking back over your day and evaluating your strengths and weaknesses. For example, you might ask yourself questions like these:

When did I do my worst thinking today? When did I do my best? What in fact did I think about today? Did I figure anything out? Did I allow any negative thinking to frustrate me unnecessarily? If I had to repeat today what would I do differently? Why? Did I do anything today to further my long-term goals? Did I act in accordance with my own expressed values? If I spent every day this way for 10 years, would I at the end have accomplished something worthy of that time?

It would be important of course to take a little time with each question. It would also be useful to record your observations so that you are forced to spell out details and be explicit in what you recognize and see. As time passes, you will notice patterns in your thinking. Second Strategy: A Problem A Day. At the beginning of each day (perhaps driving to work or going to school) choose a problem to work on when you have free moments. Figure out the logic of the problem by identifying its elements. In other words, systematically think through the questions: What exactly is the problem? How can I put it into the form of a question. How does it relate to my goals, purposes, and needs?

Third Strategy: Internalize Intellectual Standards. Each week, develop a heightened awareness of one of the universal intellectual standards (clarity, precision, accuracy, relevance, depth, breadth, logicalness, significance). Focus one week on clarity, the next on accuracy, etc. For example, if you are focusing on clarity for the week, try to notice when you are being unclear in communicating with others. Notice when others are unclear in what they are saying.

When you are reading, notice whether you are clear about what you are reading. When you orally express or write out your views (for whatever reason), ask yourself whether you are clear about what you are trying to say. In doing this, of course, focus on four techniques of clarification : 1) Stating what you are saying explicitly and precisely (with careful consideration given to your choice of words), 2) Elaborating on your meaning in other words, 3) Giving examples of what you mean from experiences you have had, and 4) Using analogies , metaphors, pictures, or diagrams to illustrate what you mean. In other words, you will frequently STATE, ELABORATE, ILLUSTRATE, AND EXEMPLIFY your points. You will regularly ask others to do the same.

Fourth Strategy: Keep An Intellectual Journal. Each week, write out a certain number of journal entries. Use the following format (keeping each numbered stage separate):

Strategy Five: Reshape Your Character. Choose one intellectual trait---intellectual perseverance, autonomy, empathy, courage, humility, etc.--- to strive for each month, focusing on how you can develop that trait in yourself. For example, concentrating on intellectual humility, begin to notice when you admit you are wrong. Notice when you refuse to admit you are wrong, even in the face of glaring evidence that you are in fact wrong. Notice when you become defensive when another person tries to point out a deficiency in your work, or your thinking. Notice when your intellectual arrogance keeps you from learning, for example, when you say to yourself “I already know everything I need to know about this subject.” Or, “I know as much as he does. Who does he think he is forcing his opinions on me?” By owning your “ignorance,” you can begin to deal with it.

Strategy Six: Deal with Your Egocentrism. Egocentric thinking is found in the disposition in human nature to think with an automatic subconscious bias in favor of oneself. On a daily basis, you can begin to observe your egocentric thinking in action by contemplating questions like these: Under what circumstances do I think with a bias in favor of myself? Did I ever become irritable over small things? Did I do or say anything “irrational” to get my way? Did I try to impose my will upon others? Did I ever fail to speak my mind when I felt strongly about something, and then later feel resentment? Once you identify egocentric thinking in operation, you can then work to replace it with more rational thought through systematic self-reflection, thinking along the lines of: What would a rational person feel in this or that situation? What would a rational person do? How does that compare with what I want to do? (Hint: If you find that you continually conclude that a rational person would behave just as you behaved you are probably engaging in self-deception.)

Strategy Seven: Redefine the Way You See Things . We live in a world, both personal and social, in which every situation is “defined,” that is, given a meaning. How a situation is defined determines not only how we feel about it, but also how we act in it, and what implications it has for us. However, virtually every situation can be defined in more than one way. This fact carries with it tremendous opportunities. In principle, it lies within your power and mine to make our lives more happy and fulfilling than they are. Many of the negative definitions that we give to situations in our lives could in principle be transformed into positive ones. We can be happy when otherwise we would have been sad.

We can be fulfilled when otherwise we would have been frustrated. In this strategy, we practice redefining the way we see things, turning negatives into positives, dead-ends into new beginnings, mistakes into opportunities to learn. To make this strategy practical, we should create some specific guidelines for ourselves. For example, we might make ourselves a list of five to ten recurrent negative contexts in which we feel frustrated, angry, unhappy, or worried. We could then identify the definition in each case that is at the root of the negative emotion. We would then choose a plausible alternative definition for each and then plan for our new responses as well as new emotions. For example, if you tend to worry about all problems, both the ones you can do something about and those that you can’t; you can review the thinking in this nursery rhyme: “For every problem under the sun, there is a solution or there is none. If there be one, think til you find it. If there be none, then never mind it.”

Let’s look at another example. You do not have to define your initial approach to a member of the opposite sex in terms of the definition “his/her response will determine whether or not I am an attractive person.” Alternatively, you could define it in terms of the definition “let me test to see if this person is initially drawn to me—given the way they perceive me.” With the first definition in mind, you feel personally put down if the person is not “interested” in you; with the second definition you explicitly recognize that people respond not to the way a stranger is, but the way they look to them subjectively. You therefore do not take a failure to show interest in you (on the part of another) as a “defect” in you.

Strategy Eight: Get in touch with your emotions: Whenever you feel some negative emotion, systematically ask yourself: What, exactly, is the thinking leading to this emotion? For example, if you are angry, ask yourself, what is the thinking that is making me angry? What other ways could I think about this situation? For example, can you think about the situation so as to see the humor in it and what is pitiable in it? If you can, concentrate on that thinking and your emotions will (eventually) shift to match it.

Strategy Nine: Analyze group influences on your life: Closely analyze the behavior that is encouraged, and discouraged, in the groups to which you belong. For any given group, what are you "required" to believe? What are you "forbidden" to do? Every group enforces some level of conformity. Most people live much too much within the view of themselves projected by others. Discover what pressure you are bowing to and think explicitly about whether or not to reject that pressure.

Conclusion: The key point to keep in mind when devising strategies is that you are engaged in a personal experiment. You are testing ideas in your everyday life. You are integrating them, and building on them, in the light of your actual experience. For example, suppose you find the strategy “Redefine the Way You See Things” to be intuitive to you. So you use it to begin. Pretty soon you find yourself noticing the social definitions that rule many situations in your life. You recognize how your behavior is shaped and controlled by the definitions in use:

• “I’m giving a party,” (Everyone therefore knows to act in a “partying” way)
• “The funeral is Tuesday,” (There are specific social behaviors expected at a funeral)
• “Jack is an acquaintance, not really a friend.” (We behave very differently in the two cases)

You begin to see how important and pervasive social definitions are. You begin to redefine situations in ways that run contrary to some commonly accepted definitions. You notice then how redefining situations (and relationships) enables you to “Get in Touch With Your Emotions.” You recognize that the way you think (that is, define things) generates the emotions you experience. When you think you are threatened (i.e., define a situation as “threatening”), you feel fear. If you define a situation as a “failure,” you may feel depressed. On the other hand, if you define that same situation as a “lesson or opportunity to learn” you feel empowered to learn. When you recognize this control that you are capable of exercising, the two strategies begin to work together and reinforce each other.

Next consider how you could integrate strategy #9 (“Analyze group influences on your life”) into your practice. One of the main things that groups do is control us by controlling the definitions we are allowed to operate with. When a group defines some things as “cool” and some as “dumb, ” the members of the group try to appear “cool” and not appear “dumb.” When the boss of a business says, “That makes a lot of sense,” his subordinates know they are not to say, “No, it is ridiculous.” And they know this because defining someone as the “boss” gives him/her special privileges to define situations and relationships.

You now have three interwoven strategies: you “Redefine the Way You See Things,” “Get in touch with your emotions,” and “Analyze group influences on your life.” The three strategies are integrated into one. You can now experiment with any of the other strategies, looking for opportunities to integrate them into your thinking and your life. If you follow through on some plan analogous to what we have described, you are developing as a thinker. More precisely, you are becoming a “Practicing” Thinker. Your practice will bring advancement. And with advancement, skilled and insightful thinking may becomes more and more natural to you.

Paul, R. & Elder, L. (2001). Modified from the book by Paul, R. & Elder, L. (2001). Critical Thinking: Tools for Taking Charge of Your Learning and Your Life .

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Thinking About Kahneman’s Contribution to Critical Thinking

A nobel laureate on the importance of 'thinking slow.'.

Updated April 11, 2024 | Reviewed by Lybi Ma

• Kahneman won a Nobel Memorial Prize in Economics for his work.
• He found that people are often irrational about economics.

During my Ph.D. studies, I recall focusing on reconceptualising what we know of as critical thinking to include reflective judgment (not jumping to conclusions and taking your time in your decision-making to consider the nature limits, and certainty of knowing) on par with the commonly accepted skills and dispositions components. The importance of reflective judgment wasn’t a particularly novel idea – a good deal of research on reflective judgment and similar processes akin to critical thinking had already been conducted (see King and Kitchener, 1994; Kuhn, 1999; 2000; Stanovich, 1999). However, reflective judgment – as opposed to intuitive judgment – didn’t seem to have ‘the presence’ in the discussion of critical thinking that it does today.

The same month I submitted my Ph.D. back in 2011, a book was released that massively helped to accomplish what I had been working to help facilitate – changing the terrain of thought surrounding critical thinking: Thinking, Fast, and Slow . Its author, Daniel Kahneman, passed away a couple of weeks ago at age 90. Psychology students will likely recognise the name associated with Amos Tversky and their classic work together in the 1970s on the availability, representativeness, and anchoring and adjustment heuristics (for example, Tversky and Kahneman, 1974). Indeed, such heuristics, alongside the affect heuristic (Kahneman and Frederick, 2002; Slovic and colleagues, 2002) play a large role in how we think about thinking and barriers to critical thought. In 2002, Kahneman won a Nobel Memorial Prize in Economics for his work on prospect theory concerning loss aversion and people’s often irrational approach to economics. Indeed, Kahneman’s resume is full of awards and achievements.

However, the accomplishment I will remember him best for is the publication of Thinking, Fast, and Slow and its contribution to the field of critical thinking. Funny enough, I don’t recall the term, critical thinking being used very often in the book, if at all – and I read it two or three times. No, critical thinking was not the focus of his book; rather system 1 (fast) and 2 (slow) thinking (see also Stanovich, 1999) – intuitive and reflective judgment. Not only did this book put into the spotlight many of the mechanics of reflective judgment for fellow academics and researchers of cognitive psychology, it also did so l for non-academic audiences – becoming a New York Times bestseller. Moreover, it won the Los Angeles Times Book Award for Current Interest, and the National Academy of Sciences Communication Award for Best Book (both in 2011). Good thinking was cool again in popular culture.

In the critical thinking literature, reflective judgment – regardless of what you want to call it (for example, system 2 thinking, epistemological understanding, ‘taking your time’) – is becoming more accepted as a core component of critical thinking. The field of critical thinking research and psychology more broadly, owes Kahneman a debt of gratitude for his contributions in helping shine a light on the importance of ‘thinking slow’. Thank you .

Kahneman, D. (2011). Thinking, fast and slow . 2UK: Penguin.

Kahneman, D., & Frederick, S. (2002). Representativeness revisited: Attribute substitution in intuitive judgment. Heuristics and biases: The Psychology of Intuitive Judgment , 49 (49-81), 74.

King, P. M., & Kitchener, K. S. (1994). Developing Reflective Judgment: Understanding and Promoting Intellectual Growth and Critical Thinking in Adolescents and Adults. CA: Jossey-Bass.

King, P. M., & Kitchener, K. S. (2004). Reflective judgment: Theory and research on the development of epistemic assumptions through adulthood. Educational Psychologist, 39 (1), 5–15.

Kuhn, D. (1999). A developmental model of critical thinking. Educational Researcher , 28 (2), 16-46.

Kuhn, D. (2000). Metacognitive development. Current Directions in Psychological Science , 9 (5), 178-181.

Slovic, P., Finucane, M., Peters, E., & MacGregor, D. G. (2002). Rational actors or rational fools: Implications of the affect heuristic for behavioral economics. The Journal of Socio-economics , 31 (4), 329-342.

Stanovich, K.E. (1999) Who is rational? Studies of individual differences in reasoning. Mahwah, Erlbaum.

Tversky, A., & Kahneman, D. (1974). Judgment under Uncertainty: Heuristics and Biases: Biases in judgments reveal some heuristics of thinking under uncertainty. Science , 185 (4157), 1124-1131.

Christopher Dwyer, Ph.D., is a lecturer at the Technological University of the Shannon in Athlone, Ireland.

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Hughes RG, editor. Patient Safety and Quality: An Evidence-Based Handbook for Nurses. Rockville (MD): Agency for Healthcare Research and Quality (US); 2008 Apr.

Patient Safety and Quality: An Evidence-Based Handbook for Nurses.

Chapter 6 clinical reasoning, decisionmaking, and action: thinking critically and clinically.

Patricia Benner ; Ronda G. Hughes ; Molly Sutphen .

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This chapter examines multiple thinking strategies that are needed for high-quality clinical practice. Clinical reasoning and judgment are examined in relation to other modes of thinking used by clinical nurses in providing quality health care to patients that avoids adverse events and patient harm. The clinician’s ability to provide safe, high-quality care can be dependent upon their ability to reason, think, and judge, which can be limited by lack of experience. The expert performance of nurses is dependent upon continual learning and evaluation of performance.

• Critical Thinking

Nursing education has emphasized critical thinking as an essential nursing skill for more than 50 years. 1 The definitions of critical thinking have evolved over the years. There are several key definitions for critical thinking to consider. The American Philosophical Association (APA) defined critical thinking as purposeful, self-regulatory judgment that uses cognitive tools such as interpretation, analysis, evaluation, inference, and explanation of the evidential, conceptual, methodological, criteriological, or contextual considerations on which judgment is based. 2 A more expansive general definition of critical thinking is

. . . in short, self-directed, self-disciplined, self-monitored, and self-corrective thinking. It presupposes assent to rigorous standards of excellence and mindful command of their use. It entails effective communication and problem solving abilities and a commitment to overcome our native egocentrism and sociocentrism. Every clinician must develop rigorous habits of critical thinking, but they cannot escape completely the situatedness and structures of the clinical traditions and practices in which they must make decisions and act quickly in specific clinical situations. 3

There are three key definitions for nursing, which differ slightly. Bittner and Tobin defined critical thinking as being “influenced by knowledge and experience, using strategies such as reflective thinking as a part of learning to identify the issues and opportunities, and holistically synthesize the information in nursing practice” 4 (p. 268). Scheffer and Rubenfeld 5 expanded on the APA definition for nurses through a consensus process, resulting in the following definition:

Critical thinking in nursing is an essential component of professional accountability and quality nursing care. Critical thinkers in nursing exhibit these habits of the mind: confidence, contextual perspective, creativity, flexibility, inquisitiveness, intellectual integrity, intuition, openmindedness, perseverance, and reflection. Critical thinkers in nursing practice the cognitive skills of analyzing, applying standards, discriminating, information seeking, logical reasoning, predicting, and transforming knowledge 6 (Scheffer & Rubenfeld, p. 357).

The National League for Nursing Accreditation Commission (NLNAC) defined critical thinking as:

the deliberate nonlinear process of collecting, interpreting, analyzing, drawing conclusions about, presenting, and evaluating information that is both factually and belief based. This is demonstrated in nursing by clinical judgment, which includes ethical, diagnostic, and therapeutic dimensions and research 7 (p. 8).

These concepts are furthered by the American Association of Colleges of Nurses’ definition of critical thinking in their Essentials of Baccalaureate Nursing :

Critical thinking underlies independent and interdependent decision making. Critical thinking includes questioning, analysis, synthesis, interpretation, inference, inductive and deductive reasoning, intuition, application, and creativity 8 (p. 9).

Course work or ethical experiences should provide the graduate with the knowledge and skills to:

• Use nursing and other appropriate theories and models, and an appropriate ethical framework;
• Apply research-based knowledge from nursing and the sciences as the basis for practice;
• Use clinical judgment and decision-making skills;
• Engage in self-reflective and collegial dialogue about professional practice;
• Evaluate nursing care outcomes through the acquisition of data and the questioning of inconsistencies, allowing for the revision of actions and goals;
• Engage in creative problem solving 8 (p. 10).

Taken together, these definitions of critical thinking set forth the scope and key elements of thought processes involved in providing clinical care. Exactly how critical thinking is defined will influence how it is taught and to what standard of care nurses will be held accountable.

Professional and regulatory bodies in nursing education have required that critical thinking be central to all nursing curricula, but they have not adequately distinguished critical reflection from ethical, clinical, or even creative thinking for decisionmaking or actions required by the clinician. Other essential modes of thought such as clinical reasoning, evaluation of evidence, creative thinking, or the application of well-established standards of practice—all distinct from critical reflection—have been subsumed under the rubric of critical thinking. In the nursing education literature, clinical reasoning and judgment are often conflated with critical thinking. The accrediting bodies and nursing scholars have included decisionmaking and action-oriented, practical, ethical, and clinical reasoning in the rubric of critical reflection and thinking. One might say that this harmless semantic confusion is corrected by actual practices, except that students need to understand the distinctions between critical reflection and clinical reasoning, and they need to learn to discern when each is better suited, just as students need to also engage in applying standards, evidence-based practices, and creative thinking.

The growing body of research, patient acuity, and complexity of care demand higher-order thinking skills. Critical thinking involves the application of knowledge and experience to identify patient problems and to direct clinical judgments and actions that result in positive patient outcomes. These skills can be cultivated by educators who display the virtues of critical thinking, including independence of thought, intellectual curiosity, courage, humility, empathy, integrity, perseverance, and fair-mindedness. 9

The process of critical thinking is stimulated by integrating the essential knowledge, experiences, and clinical reasoning that support professional practice. The emerging paradigm for clinical thinking and cognition is that it is social and dialogical rather than monological and individual. 10–12 Clinicians pool their wisdom and multiple perspectives, yet some clinical knowledge can be demonstrated only in the situation (e.g., how to suction an extremely fragile patient whose oxygen saturations sink too low). Early warnings of problematic situations are made possible by clinicians comparing their observations to that of other providers. Clinicians form practice communities that create styles of practice, including ways of doing things, communication styles and mechanisms, and shared expectations about performance and expertise of team members.

By holding up critical thinking as a large umbrella for different modes of thinking, students can easily misconstrue the logic and purposes of different modes of thinking. Clinicians and scientists alike need multiple thinking strategies, such as critical thinking, clinical judgment, diagnostic reasoning, deliberative rationality, scientific reasoning, dialogue, argument, creative thinking, and so on. In particular, clinicians need forethought and an ongoing grasp of a patient’s health status and care needs trajectory, which requires an assessment of their own clarity and understanding of the situation at hand, critical reflection, critical reasoning, and clinical judgment.

Critical Reflection, Critical Reasoning, and Judgment

Critical reflection requires that the thinker examine the underlying assumptions and radically question or doubt the validity of arguments, assertions, and even facts of the case. Critical reflective skills are essential for clinicians; however, these skills are not sufficient for the clinician who must decide how to act in particular situations and avoid patient injury. For example, in everyday practice, clinicians cannot afford to critically reflect on the well-established tenets of “normal” or “typical” human circulatory systems when trying to figure out a particular patient’s alterations from that typical, well-grounded understanding that has existed since Harvey’s work in 1628. 13 Yet critical reflection can generate new scientifically based ideas. For example, there is a lack of adequate research on the differences between women’s and men’s circulatory systems and the typical pathophysiology related to heart attacks. Available research is based upon multiple, taken-for-granted starting points about the general nature of the circulatory system. As such, critical reflection may not provide what is needed for a clinician to act in a situation. This idea can be considered reasonable since critical reflective thinking is not sufficient for good clinical reasoning and judgment. The clinician’s development of skillful critical reflection depends upon being taught what to pay attention to, and thus gaining a sense of salience that informs the powers of perceptual grasp. The powers of noticing or perceptual grasp depend upon noticing what is salient and the capacity to respond to the situation.

Critical reflection is a crucial professional skill, but it is not the only reasoning skill or logic clinicians require. The ability to think critically uses reflection, induction, deduction, analysis, challenging assumptions, and evaluation of data and information to guide decisionmaking. 9 , 14 , 15 Critical reasoning is a process whereby knowledge and experience are applied in considering multiple possibilities to achieve the desired goals, 16 while considering the patient’s situation. 14 It is a process where both inductive and deductive cognitive skills are used. 17 Sometimes clinical reasoning is presented as a form of evaluating scientific knowledge, sometimes even as a form of scientific reasoning. Critical thinking is inherent in making sound clinical reasoning. 18

An essential point of tension and confusion exists in practice traditions such as nursing and medicine when clinical reasoning and critical reflection become entangled, because the clinician must have some established bases that are not questioned when engaging in clinical decisions and actions, such as standing orders. The clinician must act in the particular situation and time with the best clinical and scientific knowledge available. The clinician cannot afford to indulge in either ritualistic unexamined knowledge or diagnostic or therapeutic nihilism caused by radical doubt, as in critical reflection, because they must find an intelligent and effective way to think and act in particular clinical situations. Critical reflection skills are essential to assist practitioners to rethink outmoded or even wrong-headed approaches to health care, health promotion, and prevention of illness and complications, especially when new evidence is available. Breakdowns in practice, high failure rates in particular therapies, new diseases, new scientific discoveries, and societal changes call for critical reflection about past assumptions and no-longer-tenable beliefs.

Clinical reasoning stands out as a situated, practice-based form of reasoning that requires a background of scientific and technological research-based knowledge about general cases, more so than any particular instance. It also requires practical ability to discern the relevance of the evidence behind general scientific and technical knowledge and how it applies to a particular patient. In dong so, the clinician considers the patient’s particular clinical trajectory, their concerns and preferences, and their particular vulnerabilities (e.g., having multiple comorbidities) and sensitivities to care interventions (e.g., known drug allergies, other conflicting comorbid conditions, incompatible therapies, and past responses to therapies) when forming clinical decisions or conclusions.

Situated in a practice setting, clinical reasoning occurs within social relationships or situations involving patient, family, community, and a team of health care providers. The expert clinician situates themselves within a nexus of relationships, with concerns that are bounded by the situation. Expert clinical reasoning is socially engaged with the relationships and concerns of those who are affected by the caregiving situation, and when certain circumstances are present, the adverse event. Halpern 19 has called excellent clinical ethical reasoning “emotional reasoning” in that the clinicians have emotional access to the patient/family concerns and their understanding of the particular care needs. Expert clinicians also seek an optimal perceptual grasp, one based on understanding and as undistorted as possible, based on an attuned emotional engagement and expert clinical knowledge. 19 , 20

Clergy educators 21 and nursing and medical educators have begun to recognize the wisdom of broadening their narrow vision of rationality beyond simple rational calculation (exemplified by cost-benefit analysis) to reconsider the need for character development—including emotional engagement, perception, habits of thought, and skill acquisition—as essential to the development of expert clinical reasoning, judgment, and action. 10 , 22–24 Practitioners of engineering, law, medicine, and nursing, like the clergy, have to develop a place to stand in their discipline’s tradition of knowledge and science in order to recognize and evaluate salient evidence in the moment. Diagnostic confusion and disciplinary nihilism are both threats to the clinician’s ability to act in particular situations. However, the practice and practitioners will not be self-improving and vital if they cannot engage in critical reflection on what is not of value, what is outmoded, and what does not work. As evidence evolves and expands, so too must clinical thought.

Clinical judgment requires clinical reasoning across time about the particular, and because of the relevance of this immediate historical unfolding, clinical reasoning can be very different from the scientific reasoning used to formulate, conduct, and assess clinical experiments. While scientific reasoning is also socially embedded in a nexus of social relationships and concerns, the goal of detached, critical objectivity used to conduct scientific experiments minimizes the interactive influence of the research on the experiment once it has begun. Scientific research in the natural and clinical sciences typically uses formal criteria to develop “yes” and “no” judgments at prespecified times. The scientist is always situated in past and immediate scientific history, preferring to evaluate static and predetermined points in time (e.g., snapshot reasoning), in contrast to a clinician who must always reason about transitions over time. 25 , 26

Techne and Phronesis

Distinctions between the mere scientific making of things and practice was first explored by Aristotle as distinctions between techne and phronesis. 27 Learning to be a good practitioner requires developing the requisite moral imagination for good practice. If, for example, patients exercise their rights and refuse treatments, practitioners are required to have the moral imagination to understand the probable basis for the patient’s refusal. For example, was the refusal based upon catastrophic thinking, unrealistic fears, misunderstanding, or even clinical depression?

Techne, as defined by Aristotle, encompasses the notion of formation of character and habitus 28 as embodied beings. In Aristotle’s terms, techne refers to the making of things or producing outcomes. 11 Joseph Dunne defines techne as “the activity of producing outcomes,” and it “is governed by a means-ends rationality where the maker or producer governs the thing or outcomes produced or made through gaining mastery over the means of producing the outcomes, to the point of being able to separate means and ends” 11 (p. 54). While some aspects of medical and nursing practice fall into the category of techne, much of nursing and medical practice falls outside means-ends rationality and must be governed by concern for doing good or what is best for the patient in particular circumstances, where being in a relationship and discerning particular human concerns at stake guide action.

Phronesis, in contrast to techne, includes reasoning about the particular, across time, through changes or transitions in the patient’s and/or the clinician’s understanding. As noted by Dunne, phronesis is “characterized at least as much by a perceptiveness with regard to concrete particulars as by a knowledge of universal principles” 11 (p. 273). This type of practical reasoning often takes the form of puzzle solving or the evaluation of immediate past “hot” history of the patient’s situation. Such a particular clinical situation is necessarily particular, even though many commonalities and similarities with other disease syndromes can be recognized through signs and symptoms and laboratory tests. 11 , 29 , 30 Pointing to knowledge embedded in a practice makes no claim for infallibility or “correctness.” Individual practitioners can be mistaken in their judgments because practices such as medicine and nursing are inherently underdetermined. 31

While phronetic knowledge must remain open to correction and improvement, real events, and consequences, it cannot consistently transcend the institutional setting’s capacities and supports for good practice. Phronesis is also dependent on ongoing experiential learning of the practitioner, where knowledge is refined, corrected, or refuted. The Western tradition, with the notable exception of Aristotle, valued knowledge that could be made universal and devalued practical know-how and experiential learning. Descartes codified this preference for formal logic and rational calculation.

Aristotle recognized that when knowledge is underdetermined, changeable, and particular, it cannot be turned into the universal or standardized. It must be perceived, discerned, and judged, all of which require experiential learning. In nursing and medicine, perceptual acuity in physical assessment and clinical judgment (i.e., reasoning across time about changes in the particular patient or the clinician’s understanding of the patient’s condition) fall into the Greek Aristotelian category of phronesis. Dewey 32 sought to rescue knowledge gained by practical activity in the world. He identified three flaws in the understanding of experience in Greek philosophy: (1) empirical knowing is the opposite of experience with science; (2) practice is reduced to techne or the application of rational thought or technique; and (3) action and skilled know-how are considered temporary and capricious as compared to reason, which the Greeks considered as ultimate reality.

In practice, nursing and medicine require both techne and phronesis. The clinician standardizes and routinizes what can be standardized and routinized, as exemplified by standardized blood pressure measurements, diagnoses, and even charting about the patient’s condition and treatment. 27 Procedural and scientific knowledge can often be formalized and standardized (e.g., practice guidelines), or at least made explicit and certain in practice, except for the necessary timing and adjustments made for particular patients. 11 , 22

Rational calculations available to techne—population trends and statistics, algorithms—are created as decision support structures and can improve accuracy when used as a stance of inquiry in making clinical judgments about particular patients. Aggregated evidence from clinical trials and ongoing working knowledge of pathophysiology, biochemistry, and genomics are essential. In addition, the skills of phronesis (clinical judgment that reasons across time, taking into account the transitions of the particular patient/family/community and transitions in the clinician’s understanding of the clinical situation) will be required for nursing, medicine, or any helping profession.

Thinking Critically

Being able to think critically enables nurses to meet the needs of patients within their context and considering their preferences; meet the needs of patients within the context of uncertainty; consider alternatives, resulting in higher-quality care; 33 and think reflectively, rather than simply accepting statements and performing tasks without significant understanding and evaluation. 34 Skillful practitioners can think critically because they have the following cognitive skills: information seeking, discriminating, analyzing, transforming knowledge, predicating, applying standards, and logical reasoning. 5 One’s ability to think critically can be affected by age, length of education (e.g., an associate vs. a baccalaureate decree in nursing), and completion of philosophy or logic subjects. 35–37 The skillful practitioner can think critically because of having the following characteristics: motivation, perseverance, fair-mindedness, and deliberate and careful attention to thinking. 5 , 9

Thinking critically implies that one has a knowledge base from which to reason and the ability to analyze and evaluate evidence. 38 Knowledge can be manifest by the logic and rational implications of decisionmaking. Clinical decisionmaking is particularly influenced by interpersonal relationships with colleagues, 39 patient conditions, availability of resources, 40 knowledge, and experience. 41 Of these, experience has been shown to enhance nurses’ abilities to make quick decisions 42 and fewer decision errors, 43 support the identification of salient cues, and foster the recognition and action on patterns of information. 44 , 45

Clinicians must develop the character and relational skills that enable them to perceive and understand their patient’s needs and concerns. This requires accurate interpretation of patient data that is relevant to the specific patient and situation. In nursing, this formation of moral agency focuses on learning to be responsible in particular ways demanded by the practice, and to pay attention and intelligently discern changes in patients’ concerns and/or clinical condition that require action on the part of the nurse or other health care workers to avert potential compromises to quality care.

Formation of the clinician’s character, skills, and habits are developed in schools and particular practice communities within a larger practice tradition. As Dunne notes,

A practice is not just a surface on which one can display instant virtuosity. It grounds one in a tradition that has been formed through an elaborate development and that exists at any juncture only in the dispositions (slowly and perhaps painfully acquired) of its recognized practitioners. The question may of course be asked whether there are any such practices in the contemporary world, whether the wholesale encroachment of Technique has not obliterated them—and whether this is not the whole point of MacIntyre’s recipe of withdrawal, as well as of the post-modern story of dispossession 11 (p. 378).

Clearly Dunne is engaging in critical reflection about the conditions for developing character, skills, and habits for skillful and ethical comportment of practitioners, as well as to act as moral agents for patients so that they and their families receive safe, effective, and compassionate care.

Professional socialization or professional values, while necessary, do not adequately address character and skill formation that transform the way the practitioner exists in his or her world, what the practitioner is capable of noticing and responding to, based upon well-established patterns of emotional responses, skills, dispositions to act, and the skills to respond, decide, and act. 46 The need for character and skill formation of the clinician is what makes a practice stand out from a mere technical, repetitious manufacturing process. 11 , 30 , 47

In nursing and medicine, many have questioned whether current health care institutions are designed to promote or hinder enlightened, compassionate practice, or whether they have deteriorated into commercial institutional models that focus primarily on efficiency and profit. MacIntyre points out the links between the ongoing development and improvement of practice traditions and the institutions that house them:

Lack of justice, lack of truthfulness, lack of courage, lack of the relevant intellectual virtues—these corrupt traditions, just as they do those institutions and practices which derive their life from the traditions of which they are the contemporary embodiments. To recognize this is of course also to recognize the existence of an additional virtue, one whose importance is perhaps most obvious when it is least present, the virtue of having an adequate sense of the traditions to which one belongs or which confront one. This virtue is not to be confused with any form of conservative antiquarianism; I am not praising those who choose the conventional conservative role of laudator temporis acti. It is rather the case that an adequate sense of tradition manifests itself in a grasp of those future possibilities which the past has made available to the present. Living traditions, just because they continue a not-yet-completed narrative, confront a future whose determinate and determinable character, so far as it possesses any, derives from the past 30 (p. 207).

It would be impossible to capture all the situated and distributed knowledge outside of actual practice situations and particular patients. Simulations are powerful as teaching tools to enable nurses’ ability to think critically because they give students the opportunity to practice in a simplified environment. However, students can be limited in their inability to convey underdetermined situations where much of the information is based on perceptions of many aspects of the patient and changes that have occurred over time. Simulations cannot have the sub-cultures formed in practice settings that set the social mood of trust, distrust, competency, limited resources, or other forms of situated possibilities.

One of the hallmark studies in nursing providing keen insight into understanding the influence of experience was a qualitative study of adult, pediatric, and neonatal intensive care unit (ICU) nurses, where the nurses were clustered into advanced beginner, intermediate, and expert level of practice categories. The advanced beginner (having up to 6 months of work experience) used procedures and protocols to determine which clinical actions were needed. When confronted with a complex patient situation, the advanced beginner felt their practice was unsafe because of a knowledge deficit or because of a knowledge application confusion. The transition from advanced beginners to competent practitioners began when they first had experience with actual clinical situations and could benefit from the knowledge gained from the mistakes of their colleagues. Competent nurses continuously questioned what they saw and heard, feeling an obligation to know more about clinical situations. In doing do, they moved from only using care plans and following the physicians’ orders to analyzing and interpreting patient situations. Beyond that, the proficient nurse acknowledged the changing relevance of clinical situations requiring action beyond what was planned or anticipated. The proficient nurse learned to acknowledge the changing needs of patient care and situation, and could organize interventions “by the situation as it unfolds rather than by preset goals 48 (p. 24). Both competent and proficient nurses (that is, intermediate level of practice) had at least two years of ICU experience. 48 Finally, the expert nurse had a more fully developed grasp of a clinical situation, a sense of confidence in what is known about the situation, and could differentiate the precise clinical problem in little time. 48

Expertise is acquired through professional experience and is indicative of a nurse who has moved beyond mere proficiency. As Gadamer 29 points out, experience involves a turning around of preconceived notions, preunderstandings, and extends or adds nuances to understanding. Dewey 49 notes that experience requires a prepared “creature” and an enriched environment. The opportunity to reflect and narrate one’s experiential learning can clarify, extend, or even refute experiential learning.

Experiential learning requires time and nurturing, but time alone does not ensure experiential learning. Aristotle linked experiential learning to the development of character and moral sensitivities of a person learning a practice. 50 New nurses/new graduates have limited work experience and must experience continuing learning until they have reached an acceptable level of performance. 51 After that, further improvements are not predictable, and years of experience are an inadequate predictor of expertise. 52

The most effective knower and developer of practical knowledge creates an ongoing dialogue and connection between lessons of the day and experiential learning over time. Gadamer, in a late life interview, highlighted the open-endedness and ongoing nature of experiential learning in the following interview response:

Being experienced does not mean that one now knows something once and for all and becomes rigid in this knowledge; rather, one becomes more open to new experiences. A person who is experienced is undogmatic. Experience has the effect of freeing one to be open to new experience … In our experience we bring nothing to a close; we are constantly learning new things from our experience … this I call the interminability of all experience 32 (p. 403).

Practical endeavor, supported by scientific knowledge, requires experiential learning, the development of skilled know-how, and perceptual acuity in order to make the scientific knowledge relevant to the situation. Clinical perceptual and skilled know-how helps the practitioner discern when particular scientific findings might be relevant. 53

Often experience and knowledge, confirmed by experimentation, are treated as oppositions, an either-or choice. However, in practice it is readily acknowledged that experiential knowledge fuels scientific investigation, and scientific investigation fuels further experiential learning. Experiential learning from particular clinical cases can help the clinician recognize future similar cases and fuel new scientific questions and study. For example, less experienced nurses—and it could be argued experienced as well—can use nursing diagnoses practice guidelines as part of their professional advancement. Guidelines are used to reflect their interpretation of patients’ needs, responses, and situation, 54 a process that requires critical thinking and decisionmaking. 55 , 56 Using guidelines also reflects one’s problem identification and problem-solving abilities. 56 Conversely, the ability to proficiently conduct a series of tasks without nursing diagnoses is the hallmark of expertise. 39 , 57

Experience precedes expertise. As expertise develops from experience and gaining knowledge and transitions to the proficiency stage, the nurses’ thinking moves from steps and procedures (i.e., task-oriented care) toward “chunks” or patterns 39 (i.e., patient-specific care). In doing so, the nurse thinks reflectively, rather than merely accepting statements and performing procedures without significant understanding and evaluation. 34 Expert nurses do not rely on rules and logical thought processes in problem-solving and decisionmaking. 39 Instead, they use abstract principles, can see the situation as a complex whole, perceive situations comprehensively, and can be fully involved in the situation. 48 Expert nurses can perform high-level care without conscious awareness of the knowledge they are using, 39 , 58 and they are able to provide that care with flexibility and speed. Through a combination of knowledge and skills gained from a range of theoretical and experiential sources, expert nurses also provide holistic care. 39 Thus, the best care comes from the combination of theoretical, tacit, and experiential knowledge. 59 , 60

Experts are thought to eventually develop the ability to intuitively know what to do and to quickly recognize critical aspects of the situation. 22 Some have proposed that expert nurses provide high-quality patient care, 61 , 62 but that is not consistently documented—particularly in consideration of patient outcomes—and a full understanding between the differential impact of care rendered by an “expert” nurse is not fully understood. In fact, several studies have found that length of professional experience is often unrelated and even negatively related to performance measures and outcomes. 63 , 64

In a review of the literature on expertise in nursing, Ericsson and colleagues 65 found that focusing on challenging, less-frequent situations would reveal individual performance differences on tasks that require speed and flexibility, such as that experienced during a code or an adverse event. Superior performance was associated with extensive training and immediate feedback about outcomes, which can be obtained through continual training, simulation, and processes such as root-cause analysis following an adverse event. Therefore, efforts to improve performance benefited from continual monitoring, planning, and retrospective evaluation. Even then, the nurse’s ability to perform as an expert is dependent upon their ability to use intuition or insights gained through interactions with patients. 39

Intuition and Perception

Intuition is the instant understanding of knowledge without evidence of sensible thought. 66 According to Young, 67 intuition in clinical practice is a process whereby the nurse recognizes something about a patient that is difficult to verbalize. Intuition is characterized by factual knowledge, “immediate possession of knowledge, and knowledge independent of the linear reasoning process” 68 (p. 23). When intuition is used, one filters information initially triggered by the imagination, leading to the integration of all knowledge and information to problem solve. 69 Clinicians use their interactions with patients and intuition, drawing on tacit or experiential knowledge, 70 , 71 to apply the correct knowledge to make the correct decisions to address patient needs. Yet there is a “conflated belief in the nurses’ ability to know what is best for the patient” 72 (p. 251) because the nurses’ and patients’ identification of the patients’ needs can vary. 73

A review of research and rhetoric involving intuition by King and Appleton 62 found that all nurses, including students, used intuition (i.e., gut feelings). They found evidence, predominately in critical care units, that intuition was triggered in response to knowledge and as a trigger for action and/or reflection with a direct bearing on the analytical process involved in patient care. The challenge for nurses was that rigid adherence to checklists, guidelines, and standardized documentation, 62 ignored the benefits of intuition. This view was furthered by Rew and Barrow 68 , 74 in their reviews of the literature, where they found that intuition was imperative to complex decisionmaking, 68 difficult to measure and assess in a quantitative manner, and was not linked to physiologic measures. 74

Intuition is a way of explaining professional expertise. 75 Expert nurses rely on their intuitive judgment that has been developed over time. 39 , 76 Intuition is an informal, nonanalytically based, unstructured, deliberate calculation that facilitates problem solving, 77 a process of arriving at salient conclusions based on relatively small amounts of knowledge and/or information. 78 Experts can have rapid insight into a situation by using intuition to recognize patterns and similarities, achieve commonsense understanding, and sense the salient information combined with deliberative rationality. 10 Intuitive recognition of similarities and commonalities between patients are often the first diagnostic clue or early warning, which must then be followed up with critical evaluation of evidence among the competing conditions. This situation calls for intuitive judgment that can distinguish “expert human judgment from the decisions” made by a novice 79 (p. 23).

Shaw 80 equates intuition with direct perception. Direct perception is dependent upon being able to detect complex patterns and relationships that one has learned through experience are important. Recognizing these patterns and relationships generally occurs rapidly and is complex, making it difficult to articulate or describe. Perceptual skills, like those of the expert nurse, are essential to recognizing current and changing clinical conditions. Perception requires attentiveness and the development of a sense of what is salient. Often in nursing and medicine, means and ends are fused, as is the case for a “good enough” birth experience and a peaceful death.

• Applying Practice Evidence

Research continues to find that using evidence-based guidelines in practice, informed through research evidence, improves patients’ outcomes. 81–83 Research-based guidelines are intended to provide guidance for specific areas of health care delivery. 84 The clinician—both the novice and expert—is expected to use the best available evidence for the most efficacious therapies and interventions in particular instances, to ensure the highest-quality care, especially when deviations from the evidence-based norm may heighten risks to patient safety. Otherwise, if nursing and medicine were exact sciences, or consisted only of techne, then a 1:1 relationship could be established between results of aggregated evidence-based research and the best path for all patients.

Evaluating Evidence

Before research should be used in practice, it must be evaluated. There are many complexities and nuances in evaluating the research evidence for clinical practice. Evaluation of research behind evidence-based medicine requires critical thinking and good clinical judgment. Sometimes the research findings are mixed or even conflicting. As such, the validity, reliability, and generalizability of available research are fundamental to evaluating whether evidence can be applied in practice. To do so, clinicians must select the best scientific evidence relevant to particular patients—a complex process that involves intuition to apply the evidence. Critical thinking is required for evaluating the best available scientific evidence for the treatment and care of a particular patient.

Good clinical judgment is required to select the most relevant research evidence. The best clinical judgment, that is, reasoning across time about the particular patient through changes in the patient’s concerns and condition and/or the clinician’s understanding, are also required. This type of judgment requires clinicians to make careful observations and evaluations of the patient over time, as well as know the patient’s concerns and social circumstances. To evolve to this level of judgment, additional education beyond clinical preparation if often required.

Sources of Evidence

Evidence that can be used in clinical practice has different sources and can be derived from research, patient’s preferences, and work-related experience. 85 , 86 Nurses have been found to obtain evidence from experienced colleagues believed to have clinical expertise and research-based knowledge 87 as well as other sources.

For many years now, randomized controlled trials (RCTs) have often been considered the best standard for evaluating clinical practice. Yet, unless the common threats to the validity (e.g., representativeness of the study population) and reliability (e.g., consistency in interventions and responses of study participants) of RCTs are addressed, the meaningfulness and generalizability of the study outcomes are very limited. Relevant patient populations may be excluded, such as women, children, minorities, the elderly, and patients with multiple chronic illnesses. The dropout rate of the trial may confound the results. And it is easier to get positive results published than it is to get negative results published. Thus, RCTs are generalizable (i.e., applicable) only to the population studied—which may not reflect the needs of the patient under the clinicians care. In instances such as these, clinicians need to also consider applied research using prospective or retrospective populations with case control to guide decisionmaking, yet this too requires critical thinking and good clinical judgment.

Another source of available evidence may come from the gold standard of aggregated systematic evaluation of clinical trial outcomes for the therapy and clinical condition in question, be generated by basic and clinical science relevant to the patient’s particular pathophysiology or care need situation, or stem from personal clinical experience. The clinician then takes all of the available evidence and considers the particular patient’s known clinical responses to past therapies, their clinical condition and history, the progression or stages of the patient’s illness and recovery, and available resources.

In clinical practice, the particular is examined in relation to the established generalizations of science. With readily available summaries of scientific evidence (e.g., systematic reviews and practice guidelines) available to nurses and physicians, one might wonder whether deep background understanding is still advantageous. Might it not be expendable, since it is likely to be out of date given the current scientific evidence? But this assumption is a false opposition and false choice because without a deep background understanding, the clinician does not know how to best find and evaluate scientific evidence for the particular case in hand. The clinician’s sense of salience in any given situation depends on past clinical experience and current scientific evidence.

Evidence-Based Practice

The concept of evidence-based practice is dependent upon synthesizing evidence from the variety of sources and applying it appropriately to the care needs of populations and individuals. This implies that evidence-based practice, indicative of expertise in practice, appropriately applies evidence to the specific situations and unique needs of patients. 88 , 89 Unfortunately, even though providing evidence-based care is an essential component of health care quality, it is well known that evidence-based practices are not used consistently.

Conceptually, evidence used in practice advances clinical knowledge, and that knowledge supports independent clinical decisions in the best interest of the patient. 90 , 91 Decisions must prudently consider the factors not necessarily addressed in the guideline, such as the patient’s lifestyle, drug sensitivities and allergies, and comorbidities. Nurses who want to improve the quality and safety of care can do so though improving the consistency of data and information interpretation inherent in evidence-based practice.

Initially, before evidence-based practice can begin, there needs to be an accurate clinical judgment of patient responses and needs. In the course of providing care, with careful consideration of patient safety and quality care, clinicians must give attention to the patient’s condition, their responses to health care interventions, and potential adverse reactions or events that could harm the patient. Nonetheless, there is wide variation in the ability of nurses to accurately interpret patient responses 92 and their risks. 93 Even though variance in interpretation is expected, nurses are obligated to continually improve their skills to ensure that patients receive quality care safely. 94 Patients are vulnerable to the actions and experience of their clinicians, which are inextricably linked to the quality of care patients have access to and subsequently receive.

The judgment of the patient’s condition determines subsequent interventions and patient outcomes. Attaining accurate and consistent interpretations of patient data and information is difficult because each piece can have different meanings, and interpretations are influenced by previous experiences. 95 Nurses use knowledge from clinical experience 96 , 97 and—although infrequently—research. 98–100

Once a problem has been identified, using a process that utilizes critical thinking to recognize the problem, the clinician then searches for and evaluates the research evidence 101 and evaluates potential discrepancies. The process of using evidence in practice involves “a problem-solving approach that incorporates the best available scientific evidence, clinicians’ expertise, and patient’s preferences and values” 102 (p. 28). Yet many nurses do not perceive that they have the education, tools, or resources to use evidence appropriately in practice. 103

Reported barriers to using research in practice have included difficulty in understanding the applicability and the complexity of research findings, failure of researchers to put findings into the clinical context, lack of skills in how to use research in practice, 104 , 105 amount of time required to access information and determine practice implications, 105–107 lack of organizational support to make changes and/or use in practice, 104 , 97 , 105 , 107 and lack of confidence in one’s ability to critically evaluate clinical evidence. 108

When Evidence Is Missing

In many clinical situations, there may be no clear guidelines and few or even no relevant clinical trials to guide decisionmaking. In these cases, the latest basic science about cellular and genomic functioning may be the most relevant science, or by default, guestimation. Consequently, good patient care requires more than a straightforward, unequivocal application of scientific evidence. The clinician must be able to draw on a good understanding of basic sciences, as well as guidelines derived from aggregated data and information from research investigations.

Practical knowledge is shaped by one’s practice discipline and the science and technology relevant to the situation at hand. But scientific, formal, discipline-specific knowledge are not sufficient for good clinical practice, whether the discipline be law, medicine, nursing, teaching, or social work. Practitioners still have to learn how to discern generalizable scientific knowledge, know how to use scientific knowledge in practical situations, discern what scientific evidence/knowledge is relevant, assess how the particular patient’s situation differs from the general scientific understanding, and recognize the complexity of care delivery—a process that is complex, ongoing, and changing, as new evidence can overturn old.

Practice communities like individual practitioners may also be mistaken, as is illustrated by variability in practice styles and practice outcomes across hospitals and regions in the United States. This variability in practice is why practitioners must learn to critically evaluate their practice and continually improve their practice over time. The goal is to create a living self-improving tradition.

Within health care, students, scientists, and practitioners are challenged to learn and use different modes of thinking when they are conflated under one term or rubric, using the best-suited thinking strategies for taking into consideration the purposes and the ends of the reasoning. Learning to be an effective, safe nurse or physician requires not only technical expertise, but also the ability to form helping relationships and engage in practical ethical and clinical reasoning. 50 Good ethical comportment requires that both the clinician and the scientist take into account the notions of good inherent in clinical and scientific practices. The notions of good clinical practice must include the relevant significance and the human concerns involved in decisionmaking in particular situations, centered on clinical grasp and clinical forethought.

The Three Apprenticeships of Professional Education

We have much to learn in comparing the pedagogies of formation across the professions, such as is being done currently by the Carnegie Foundation for the Advancement of Teaching. The Carnegie Foundation’s broad research program on the educational preparation of the profession focuses on three essential apprenticeships:

To capture the full range of crucial dimensions in professional education, we developed the idea of a three-fold apprenticeship: (1) intellectual training to learn the academic knowledge base and the capacity to think in ways important to the profession; (2) a skill-based apprenticeship of practice; and (3) an apprenticeship to the ethical standards, social roles, and responsibilities of the profession, through which the novice is introduced to the meaning of an integrated practice of all dimensions of the profession, grounded in the profession’s fundamental purposes. 109

This framework has allowed the investigators to describe tensions and shortfalls as well as strengths of widespread teaching practices, especially at articulation points among these dimensions of professional training.

Research has demonstrated that these three apprenticeships are taught best when they are integrated so that the intellectual training includes skilled know-how, clinical judgment, and ethical comportment. In the study of nursing, exemplary classroom and clinical teachers were found who do integrate the three apprenticeships in all of their teaching, as exemplified by the following anonymous student’s comments:

With that as well, I enjoyed the class just because I do have clinical experience in my background and I enjoyed it because it took those practical applications and the knowledge from pathophysiology and pharmacology, and all the other classes, and it tied it into the actual aspects of like what is going to happen at work. For example, I work in the emergency room and question: Why am I doing this procedure for this particular patient? Beforehand, when I was just a tech and I wasn’t going to school, I’d be doing it because I was told to be doing it—or I’d be doing CPR because, you know, the doc said, start CPR. I really enjoy the Care and Illness because now I know the process, the pathophysiological process of why I’m doing it and the clinical reasons of why they’re making the decisions, and the prioritization that goes on behind it. I think that’s the biggest point. Clinical experience is good, but not everybody has it. Yet when these students transition from school and clinicals to their job as a nurse, they will understand what’s going on and why.

The three apprenticeships are equally relevant and intertwined. In the Carnegie National Study of Nursing Education and the companion study on medical education as well as in cross-professional comparisons, teaching that gives an integrated access to professional practice is being examined. Once the three apprenticeships are separated, it is difficult to reintegrate them. The investigators are encouraged by teaching strategies that integrate the latest scientific knowledge and relevant clinical evidence with clinical reasoning about particular patients in unfolding rather than static cases, while keeping the patient and family experience and concerns relevant to clinical concerns and reasoning.

Clinical judgment or phronesis is required to evaluate and integrate techne and scientific evidence.

Within nursing, professional practice is wise and effective usually to the extent that the professional creates relational and communication contexts where clients/patients can be open and trusting. Effectiveness depends upon mutual influence between patient and practitioner, student and learner. This is another way in which clinical knowledge is dialogical and socially distributed. The following articulation of practical reasoning in nursing illustrates the social, dialogical nature of clinical reasoning and addresses the centrality of perception and understanding to good clinical reasoning, judgment and intervention.

Clinical Grasp *

Clinical grasp describes clinical inquiry in action. Clinical grasp begins with perception and includes problem identification and clinical judgment across time about the particular transitions of particular patients. Garrett Chan 20 described the clinician’s attempt at finding an “optimal grasp” or vantage point of understanding. Four aspects of clinical grasp, which are described in the following paragraphs, include (1) making qualitative distinctions, (2) engaging in detective work, (3) recognizing changing relevance, and (4) developing clinical knowledge in specific patient populations.

Making Qualitative Distinctions

Qualitative distinctions refer to those distinctions that can be made only in a particular contextual or historical situation. The context and sequence of events are essential for making qualitative distinctions; therefore, the clinician must pay attention to transitions in the situation and judgment. Many qualitative distinctions can be made only by observing differences through touch, sound, or sight, such as the qualities of a wound, skin turgor, color, capillary refill, or the engagement and energy level of the patient. Another example is assessing whether the patient was more fatigued after ambulating to the bathroom or from lack of sleep. Likewise the quality of the clinician’s touch is distinct as in offering reassurance, putting pressure on a bleeding wound, and so on. 110

Engaging in Detective Work, Modus Operandi Thinking, and Clinical Puzzle Solving

Clinical situations are open ended and underdetermined. Modus operandi thinking keeps track of the particular patient, the way the illness unfolds, the meanings of the patient’s responses as they have occurred in the particular time sequence. Modus operandi thinking requires keeping track of what has been tried and what has or has not worked with the patient. In this kind of reasoning-in-transition, gains and losses of understanding are noticed and adjustments in the problem approach are made.

We found that teachers in a medical surgical unit at the University of Washington deliberately teach their students to engage in “detective work.” Students are given the daily clinical assignment of “sleuthing” for undetected drug incompatibilities, questionable drug dosages, and unnoticed signs and symptoms. For example, one student noted that an unusual dosage of a heart medication was being given to a patient who did not have heart disease. The student first asked her teacher about the unusually high dosage. The teacher, in turn, asked the student whether she had asked the nurse or the patient about the dosage. Upon the student’s questioning, the nurse did not know why the patient was receiving the high dosage and assumed the drug was for heart disease. The patient’s staff nurse had not questioned the order. When the student asked the patient, the student found that the medication was being given for tremors and that the patient and the doctor had titrated the dosage for control of the tremors. This deliberate approach to teaching detective work, or modus operandi thinking, has characteristics of “critical reflection,” but stays situated and engaged, ferreting out the immediate history and unfolding of events.

Recognizing Changing Clinical Relevance

The meanings of signs and symptoms are changed by sequencing and history. The patient’s mental status, color, or pain level may continue to deteriorate or get better. The direction, implication, and consequences for the changes alter the relevance of the particular facts in the situation. The changing relevance entailed in a patient transitioning from primarily curative care to primarily palliative care is a dramatic example, where symptoms literally take on new meanings and require new treatments.

Developing Clinical Knowledge in Specific Patient Populations

Extensive experience with a specific patient population or patients with particular injuries or diseases allows the clinician to develop comparisons, distinctions, and nuanced differences within the population. The comparisons between many specific patients create a matrix of comparisons for clinicians, as well as a tacit, background set of expectations that create population- and patient-specific detective work if a patient does not meet the usual, predictable transitions in recovery. What is in the background and foreground of the clinician’s attention shifts as predictable changes in the patient’s condition occurs, such as is seen in recovering from heart surgery or progressing through the predictable stages of labor and delivery. Over time, the clinician develops a deep background understanding that allows for expert diagnostic and interventions skills.

Clinical Forethought

Clinical forethought is intertwined with clinical grasp, but it is much more deliberate and even routinized than clinical grasp. Clinical forethought is a pervasive habit of thought and action in nursing practice, and also in medicine, as clinicians think about disease and recovery trajectories and the implications of these changes for treatment. Clinical forethought plays a role in clinical grasp because it structures the practical logic of clinicians. At least four habits of thought and action are evident in what we are calling clinical forethought: (1) future think, (2) clinical forethought about specific patient populations, (3) anticipation of risks for particular patients, and (4) seeing the unexpected.

Future think

Future think is the broadest category of this logic of practice. Anticipating likely immediate futures helps the clinician make good plans and decisions about preparing the environment so that responding rapidly to changes in the patient is possible. Without a sense of salience about anticipated signs and symptoms and preparing the environment, essential clinical judgments and timely interventions would be impossible in the typically fast pace of acute and intensive patient care. Future think governs the style and content of the nurse’s attentiveness to the patient. Whether in a fast-paced care environment or a slower-paced rehabilitation setting, thinking and acting with anticipated futures guide clinical thinking and judgment. Future think captures the way judgment is suspended in a predictive net of anticipation and preparing oneself and the environment for a range of potential events.

Clinical forethought about specific diagnoses and injuries

This habit of thought and action is so second nature to the experienced nurse that the new or inexperienced nurse may have difficulty finding out about what seems to other colleagues as “obvious” preparation for particular patients and situations. Clinical forethought involves much local specific knowledge about who is a good resource and how to marshal support services and equipment for particular patients.

Examples of preparing for specific patient populations are pervasive, such as anticipating the need for a pacemaker during surgery and having the equipment assembled ready for use to save essential time. Another example includes forecasting an accident victim’s potential injuries, and recognizing that intubation might be needed.

Anticipation of crises, risks, and vulnerabilities for particular patients

This aspect of clinical forethought is central to knowing the particular patient, family, or community. Nurses situate the patient’s problems almost like a topography of possibilities. This vital clinical knowledge needs to be communicated to other caregivers and across care borders. Clinical teaching could be improved by enriching curricula with narrative examples from actual practice, and by helping students recognize commonly occurring clinical situations in the simulation and clinical setting. For example, if a patient is hemodynamically unstable, then managing life-sustaining physiologic functions will be a main orienting goal. If the patient is agitated and uncomfortable, then attending to comfort needs in relation to hemodynamics will be a priority. Providing comfort measures turns out to be a central background practice for making clinical judgments and contains within it much judgment and experiential learning.

When clinical teaching is too removed from typical contingencies and strong clinical situations in practice, students will lack practice in active thinking-in-action in ambiguous clinical situations. In the following example, an anonymous student recounted her experiences of meeting a patient:

I was used to different equipment and didn’t know how things went, didn’t know their routine, really. You can explain all you want in class, this is how it’s going to be, but when you get there … . Kim was my first instructor and my patient that she assigned me to—I walked into the room and he had every tube imaginable. And so I was a little overwhelmed. It’s not necessarily even that he was that critical … . She asked what tubes here have you seen? Well, I know peripheral lines. You taught me PICC [peripherally inserted central catheter] lines, and we just had that, but I don’t really feel comfortable doing it by myself, without you watching to make sure that I’m flushing it right and how to assess it. He had a chest tube and I had seen chest tubes, but never really knew the depth of what you had to assess and how you make sure that it’s all kosher and whatever. So she went through the chest tube and explained, it’s just bubbling a little bit and that’s okay. The site, check the site. The site looked okay and that she’d say if it wasn’t okay, this is what it might look like … . He had a feeding tube. I had done feeding tubes but that was like a long time ago in my LPN experiences schooling. So I hadn’t really done too much with the feeding stuff either … . He had a [nasogastric] tube, and knew pretty much about that and I think at the time it was clamped. So there were no issues with the suction or whatever. He had a Foley catheter. He had a feeding tube, a chest tube. I can’t even remember but there were a lot.

As noted earlier, a central characteristic of a practice discipline is that a self-improving practice requires ongoing experiential learning. One way nurse educators can enhance clinical inquiry is by increasing pedagogies of experiential learning. Current pedagogies for experiential learning in nursing include extensive preclinical study, care planning, and shared postclinical debriefings where students share their experiential learning with their classmates. Experiential learning requires open learning climates where students can discuss and examine transitions in understanding, including their false starts, or their misconceptions in actual clinical situations. Nursing educators typically develop open and interactive clinical learning communities, so that students seem committed to helping their classmates learn from their experiences that may have been difficult or even unsafe. One anonymous nurse educator described how students extend their experiential learning to their classmates during a postclinical conference:

So for example, the patient had difficulty breathing and the student wanted to give the meds instead of addressing the difficulty of breathing. Well, while we were sharing information about their patients, what they did that day, I didn’t tell the student to say this, but she said, ‘I just want to tell you what I did today in clinical so you don’t do the same thing, and here’s what happened.’ Everybody’s listening very attentively and they were asking her some questions. But she shared that. She didn’t have to. I didn’t tell her, you must share that in postconference or anything like that, but she just went ahead and shared that, I guess, to reinforce what she had learned that day but also to benefit her fellow students in case that thing comes up with them.

The teacher’s response to this student’s honesty and generosity exemplifies her own approach to developing an open community of learning. Focusing only on performance and on “being correct” prevents learning from breakdown or error and can dampen students’ curiosity and courage to learn experientially.

Seeing the unexpected

One of the keys to becoming an expert practitioner lies in how the person holds past experiential learning and background habitual skills and practices. This is a skill of foregrounding attention accurately and effectively in response to the nature of situational demands. Bourdieu 29 calls the recognition of the situation central to practical reasoning. If nothing is routinized as a habitual response pattern, then practitioners will not function effectively in emergencies. Unexpected occurrences may be overlooked. However, if expectations are held rigidly, then subtle changes from the usual will be missed, and habitual, rote responses will inappropriately rule. The clinician must be flexible in shifting between what is in background and foreground. This is accomplished by staying curious and open. The clinical “certainty” associated with perceptual grasp is distinct from the kind of “certainty” achievable in scientific experiments and through measurements. Recognition of similar or paradigmatic clinical situations is similar to “face recognition” or recognition of “family resemblances.” This concept is subject to faulty memory, false associative memories, and mistaken identities; therefore, such perceptual grasp is the beginning of curiosity and inquiry and not the end. Assessment and validation are required. In rapidly moving clinical situations, perceptual grasp is the starting point for clarification, confirmation, and action. Having the clinician say out loud how he or she is understanding the situation gives an opportunity for confirmation and disconfirmation from other clinicians present. 111 The relationship between foreground and background of attention needs to be fluid, so that missed expectations allow the nurse to see the unexpected. For example, when the background rhythm of a cardiac monitor changes, the nurse notices, and what had been background tacit awareness becomes the foreground of attention. A hallmark of expertise is the ability to notice the unexpected. 20 Background expectations of usual patient trajectories form with experience. Tacit expectations for patient trajectories form that enable the nurse to notice subtle failed expectations and pay attention to early signs of unexpected changes in the patient's condition. Clinical expectations gained from caring for similar patient populations form a tacit clinical forethought that enable the experienced clinician to notice missed expectations. Alterations from implicit or explicit expectations set the stage for experiential learning, depending on the openness of the learner.

Learning to provide safe and quality health care requires technical expertise, the ability to think critically, experience, and clinical judgment. The high-performance expectation of nurses is dependent upon the nurses’ continual learning, professional accountability, independent and interdependent decisionmaking, and creative problem-solving abilities.

This section of the paper was condensed and paraphrased from Benner, Hooper-Kyriakidis, and Stannard. 23 Patricia Hooper-Kyriakidis wrote the section on clinical grasp, and Patricia Benner wrote the section on clinical forethought.

• Cite this Page Benner P, Hughes RG, Sutphen M. Clinical Reasoning, Decisionmaking, and Action: Thinking Critically and Clinically. In: Hughes RG, editor. Patient Safety and Quality: An Evidence-Based Handbook for Nurses. Rockville (MD): Agency for Healthcare Research and Quality (US); 2008 Apr. Chapter 6.
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