What is critical thinking? Why is critical thinking important? Who can and should learn to think critically? How do you help people learn to think critically? Suppose you see a widely shared online post claiming that a particular community program has dramatically reduced a serious local problem. Before accepting or rejecting the claim, what would you want to know? You might begin with the claim itself. What exactly is being said? Does "dramatically reduced" refer to a percentage, a number of people, or someone's impression? Over what period did the change occur? Compared with what? Next, you might ask about the evidence. Where did the numbers come from? How were they measured? Is there information from before the program began? Are other explanations possible? Does the original report support the way the social-media post summarizes it? You might also investigate the source. Who created the post? Who conducted the evaluation? Do they have relevant expertise? What interests or incentives might affect how the findings are presented? Can you find the original report or data? Do independent sources support the same conclusion? Finally, you might consider context. Did anything else change in the community during the same period? Who benefited? Were some groups affected differently? What remains uncertain? If you ask questions like these when you encounter information, consider a problem, make a decision, or evaluate your own conclusions, you are using critical thinking. Critical thinking is especially important in health, human service, and community work because decisions can affect people's opportunities, resources, safety, health, rights, and everyday lives. What is critical thinking? There are many ways to describe critical thinking. In this section, critical thinking means a disciplined process of examining information, claims, assumptions, evidence, reasoning, context, and alternatives before deciding what conclusion or action is justified. Critical thinking includes questioning: Survey and evaluation results Research findings Theories Personal observations and anecdotes Media reports Social-media posts AI-generated information Data visualizations Historical accounts Political statements Professional recommendations Organizational traditions Conventional wisdom Statements from authority figures Our own assumptions and preferred explanations Critical thinking does not mean automatically rejecting authority, conventional wisdom, or widely accepted knowledge. It also does not mean treating every claim as equally uncertain. Instead, it means asking what level of confidence is justified by the available evidence and being willing to change that confidence when better evidence becomes available. Elements of critical thinking Critical thinking is not always a rigid sequence, but several recurring activities are useful. Clarify the question or problem: What are we actually trying to understand, decide, or change? Examine what is known: What evidence and experience are available? How strong are they? Identify uncertainty: What do we not know? What are we estimating or assuming? Examine assumptions: What beliefs, values, definitions, or expectations are shaping the way the issue is framed? Consider context: What historical, social, economic, organizational, cultural, legal, or physical conditions matter? Consider alternatives: What other explanations, interpretations, options, or responses are plausible? Evaluate reasoning: Do the conclusions actually follow from the evidence? Make a judgment: What conclusion or action is best supported at this point, and with what degree of confidence? Act when appropriate: Carry out the decision proportionately to the evidence, stakes, and uncertainty. Reflect and revise: What happened? What did we learn? What evidence would cause us to change our conclusion or approach? Critical thinking is therefore both analytical and reflective. It includes examining the issue and examining your own reasoning about the issue. Goals of critical thinking Accuracy Critical thinking helps distinguish well-supported claims from claims that are inaccurate, incomplete, exaggerated, misleading, or unsupported. Not every question has a simple true-or-false answer. Sometimes the most accurate conclusion is: The available evidence suggests this is probably true, but important uncertainty remains. Context Information rarely exists in isolation. Consider: When the information was produced Why it was produced What happened before it What conditions existed at the time Whether those conditions are still present Assumptions Critical thinking helps make assumptions visible. Ask: What are we taking for granted? Why do we believe it? What evidence supports it? What would happen to our conclusion if it were wrong? Alternatives An early explanation or solution may feel obvious because it is the first one that came to mind. Critical thinking asks what other explanations or approaches deserve consideration. Calibration Confidence should match the strength of the evidence. Be cautious about being highly certain when: Data are limited Sources conflict Important information is missing The situation is changing rapidly Results depend heavily on assumptions Intellectual humility Critical thinking includes the ability to say: I may be wrong. That does not mean treating every conclusion as equally doubtful. It means remaining willing to revise a conclusion when the evidence warrants it. Critical thinking and action In community work, critical thinking often informs action. But action is not always the immediate result. Critical analysis may show that the organization should: Act Test a smaller intervention first Gather additional evidence Consult people with relevant expertise or experience Change the problem definition Delay an irreversible decision Decide that no additional action is justified Critical thinking should improve the quality of judgment, not create pressure to act before the evidence supports action. Why is critical thinking important? People encounter more information than they can examine in depth. Some of that information is accurate and useful. Some is incomplete or outdated. Some is opinion presented as fact. Some is advertising, advocacy, entertainment, satire, or speculation. Some misinformation is shared unintentionally, while some misleading information is deliberately created or amplified. Critical thinking helps people decide what deserves attention, what evidence deserves greater weight, and what conclusions are justified. It helps examine assumptions Every person approaches information with prior knowledge, values, expectations, experiences, and beliefs. These can be useful. They can also cause us to overlook evidence, interpret ambiguous information too quickly, or favor explanations that already fit what we believe. Ask: What did I expect to find? Am I treating evidence differently because I like or dislike the conclusion? Would I accept the same evidence if it supported the opposite position? What evidence would change my mind? It helps distinguish evidence from interpretation Consider these two statements: Program enrollment fell from 300 participants to 220 participants. The community has lost interest in the program. The first is a description of a measured change. The second is an interpretation that may or may not explain the change. Other explanations might include: Changes in eligibility Transportation barriers Reduced outreach Different program hours A competing service Problems with how enrollment was measured Critical thinking helps prevent an interpretation from becoming a fact merely because it sounds plausible. It helps evaluate evidence Evidence varies in quality. Ask: How was the information collected? How many people or cases were included? Who was included and excluded? What was measured? Were appropriate comparisons made? How much uncertainty is present? Do the conclusions go beyond what the data support? It reduces overreliance on anecdotes Individual experiences can provide important information and can identify questions that larger data sets miss. But one person's experience does not automatically tell us how common something is. For example: One participant had a negative experience with the program, so the program does not work. That experience should be taken seriously, but additional evidence is needed to determine whether it reflects a broader pattern. It helps examine cause and effect Two things occurring together does not necessarily mean one caused the other. Ask: Did the proposed cause occur before the effect? Is there a plausible mechanism connecting them? Could another factor explain both? What happens in comparable situations? Is the evidence strong enough to support a causal conclusion? It helps people work with numbers more carefully Numbers can create an impression of certainty even when the interpretation is weak. When evaluating statistics, ask: What is the denominator? Is the change an absolute number or a percentage? What is the baseline? What time period is being compared? Is an average hiding important differences? How uncertain is the estimate? A claim that a risk "doubled," for example, means something very different if it increased from 1 in 1,000,000 to 2 in 1,000,000 than if it increased from 1 in 10 to 2 in 10. It helps people evaluate digital information Online information requires more than judging whether a page looks professional. Useful questions include: Who is behind the information? What is the original source? Is the account or organization what it claims to be? What do reliable independent sources say? Is the image, video, quotation, or statistic being shown in its original context? Is the information current? Sometimes the quickest way to evaluate a website, post, or video is to leave it temporarily and investigate the source elsewhere. It helps people use AI-generated information responsibly Generative AI can help summarize, brainstorm, translate, explain, or organize information. Fluent output is not proof that the information is correct. When important decisions depend on AI-generated information: Verify important factual claims Check cited sources Confirm that a source actually supports the claim attributed to it Look for missing context Avoid treating invented detail as evidence Use appropriate human expertise for high-stakes decisions It helps people distinguish facts, opinions, values, and narratives These categories can overlap, but they are not interchangeable. A value judgment cannot always be settled simply by collecting more data. For example, evidence may estimate how much a policy costs and who is affected. Evidence alone may not determine how a community should weigh cost, fairness, freedom, safety, or other competing values. Critical thinking makes those differences visible instead of disguising a value disagreement as a factual one. It helps people understand context An approach that worked in one organization or community may not work the same way somewhere else. Consider: Local resources Infrastructure Population characteristics relevant to the issue Institutions Policies History Trust Economic conditions Geography Existing programs and partnerships It supports better decisions without promising certainty Critical thinking cannot guarantee that a decision will succeed. People may have incomplete information, conditions may change, or an intervention may create unexpected effects. The goal is to make a decision that is better supported, clearer about its assumptions, and easier to revise when new evidence appears. Who can and should learn to think critically? Critical thinking is useful across ages, occupations, education levels, and communities. Children can begin by asking simple questions about evidence, comparison, cause and effect, and how they know something. More advanced learners can examine: Competing explanations Statistical evidence Research methods Complex systems Uncertainty Ethical tradeoffs Adults continue to need critical-thinking skills as information environments, technology, professional knowledge, and community conditions change. Critical thinking is not a trait that some groups possess and others lack Avoid assuming that someone's education level, income, occupation, age, community, political beliefs, religion, or other background tells you whether they can think critically. People may have deep expertise in one domain and limited knowledge in another. Critical thinking is affected by both reasoning skills and subject knowledge. Someone who knows how to ask good questions may still reach a poor conclusion if important factual knowledge is missing. Likewise, a person with substantial factual knowledge may still reason poorly if they do not examine assumptions, uncertainty, or competing evidence. Opportunities to develop critical thinking are not distributed equally Some people have had more opportunities than others to practice: Asking questions Discussing evidence Challenging ideas safely Working with data Conducting research Reflecting on their own reasoning The appropriate response is to provide opportunities, instruction, tools, and practice rather than viewing learners through a deficit lens. Critical thinking can begin with concrete problems People do not need to master abstract philosophy before they can practice critical thinking. Concrete questions can provide a useful starting point: Why did attendance decrease? How do we know this outreach strategy is reaching the intended audience? What evidence supports this claim? What other explanation is possible? More complex reasoning can be built progressively through modeling, practice, feedback, and reflection. How do you help people learn to think critically? Critical thinking develops through practice. It is most useful when connected to real subject matter rather than taught only as an abstract set of thinking rules. Learners need opportunities to apply critical thinking to questions that require knowledge, evidence, interpretation, judgment, and reflection. Teaching critical thinking can be considered in three connected areas: Creating conditions that support questioning and revision Teaching metacognitive and information-evaluation strategies Applying those strategies to real problems and decisions Create conditions that support critical thinking People are less likely to question assumptions when doing so routinely leads to ridicule, retaliation, or dismissal. Create an environment in which learners can: Ask for evidence Admit that they do not know Change their minds Challenge the facilitator respectfully Identify mistakes Raise alternative explanations Critical thinking does not require treating every claim as equally credible. Evidence and reasoning still matter. Model the process Make useful reasoning practices visible. For example, a facilitator might say: My first interpretation was that participation decreased because people lost interest. But I realized I was assuming we had maintained the same outreach and schedule. Before I accept that explanation, I want to check whether those conditions changed. Modeling should focus on the reasoning strategy that learners can reuse: Identify the assumption Identify missing information Look for another explanation Check evidence Revise the conclusion if necessary Teach metacognition Metacognition means thinking about and monitoring your own thinking. Encourage learners to plan, monitor, and evaluate their reasoning. Before analyzing Ask: What is the question? What do I already know? What might I be assuming? What information will I need? During analysis Ask: Am I answering the actual question? Am I relying too heavily on one source? Have I considered another explanation? Does the evidence support the strength of my conclusion? Afterward Ask: How confident am I? What evidence would change my mind? What did I find difficult? Which strategy helped? What should I do differently next time? Help learners recognize assumptions Assumptions are ideas or expectations we accept without examining them each time. They can come from: Prior knowledge Personal experience Values Professional training Community and organizational history Social and cultural context Interests and incentives Repeated messages Institutions and authority The information environments we participate in An assumption is not automatically wrong. The question is whether an important conclusion depends on it and whether there is reason to test it. Examine values and interests without pretending they can always be removed Community decisions often involve both evidence and values. Ask: What outcomes are we prioritizing? Who benefits? Who bears costs or risks? What rights or responsibilities are involved? Which tradeoffs are factual questions and which are value judgments? Being explicit about values can improve reasoning more than pretending that values are absent. Recognize the role of emotion Emotions can affect attention, interpretation, and decision-making. They are not automatically evidence that a factual conclusion is true or false. They can, however, identify something worth examining. For example, anger about a proposed policy may lead to questions about fairness, harm, or rights that deserve investigation. The critical-thinking task is to examine both the reaction and the relevant evidence rather than simply suppressing the reaction. Examine information systematically Useful questions include: What exactly is the claim? State it precisely enough that evidence could support or challenge it. What is the source? Determine: Who produced the information Their relevant expertise Their purpose Their evidence Whether significant conflicts or incentives are present Do not decide that information is true or false solely because you agree or disagree with the source's politics, institution, profession, or identity. Can you trace the claim to original evidence? A news story, social-media post, AI answer, or advocacy document may summarize another source. When the issue is important, look for the underlying: Research study Dataset Government document Court decision Policy Speech or recording Evaluation report What do independent sources say? Corroboration is especially useful when: A claim is surprising The source has a strong stake in the outcome The information is spreading rapidly online The consequences of acting on it are significant Is the information current and in context? Accurate information can become misleading if: It is old A quotation is shortened in a way that changes its meaning An image comes from another event A statistic refers to a different population Conditions have changed since the evidence was collected Is the information complete enough for the decision? No source contains everything. Ask whether important missing information could change the conclusion. Is the reasoning sound? Watch for problems such as: Generalizing from one or a few examples Treating correlation as causation Presenting only two choices when more exist Selecting only evidence that supports a preferred conclusion Ignoring relevant base rates or comparison groups Attacking a person instead of addressing the argument Changing the standard of evidence depending on who makes the claim How strong is the evidence? Avoid treating all evidence as equivalent. A personal story, a carefully conducted study, an administrative dataset, professional judgment, and a community survey may each provide useful information, but they answer different questions and have different limitations. Teach digital verification Information online often needs to be checked beyond the page where it appears. Learners can practice: Searching for the organization or author in independent sources Finding the original claim Checking whether a quotation is complete Checking publication and event dates Comparing several credible sources Verifying images or videos Looking for corrections or updated information The visual appearance of a website or social-media account should not substitute for verification. Teach people to work with AI-generated information critically AI systems can produce useful explanations and summaries, but they can also produce incorrect details, unsupported claims, incomplete context, or nonexistent citations. Practice asking: Which claims here need verification? What source would be authoritative for this question? Can I confirm the cited source exists? Does that source actually support the statement? What information might be missing? Is this a factual question, interpretation, prediction, or recommendation? Consider context When examining a community issue, relevant context may include: Community priorities Geography Infrastructure Economic conditions Policies and laws Institutions Existing programs and services Community assets Relationships among organizations Historical experience Trust Information access History Previous efforts can reveal both useful lessons and unresolved concerns. Ask: Has this approach been tried before? What happened? Why? Have important conditions changed since then? Whose account of the history are we hearing? Use more than one perspective when the history is contested or when earlier decisions affected groups differently. Interests and power Consider: Who has decision authority? Who controls resources? Who experiences the consequences? Who benefits from the current situation? Who might benefit or lose under different alternatives? An interested party's evidence should not automatically be dismissed, but the interest should be considered when evaluating how claims are presented and what additional verification is needed. Information environment What people encounter is shaped partly by: Search and recommendation systems Social networks Repetition Influencers and content creators Platform incentives Advertising AI-generated and algorithmically selected content Repeated exposure can make a claim feel familiar without making it more accurate. Facilitating problem solving using critical thinking Critical thinking can be applied directly to community and organizational problems. Clarify the current situation Ask: What is actually happening? How do we know? Who is affected? How large is the problem? Over what period? Compared with what? Identify assumptions about the problem Ask: What are we assuming causes the problem? What evidence supports that assumption? What other explanation might fit the evidence? Are we confusing a symptom with an underlying condition? Test important assumptions Not every assumption needs an exhaustive investigation. Focus on assumptions that would materially affect the decision. Ask: If this assumption were wrong, would we choose a different strategy? If the answer is yes, the assumption deserves closer examination. Identify what evidence would change your mind Before choosing a solution, ask participants: What would we need to learn to conclude that our current explanation is wrong? This can reduce the tendency to search only for evidence supporting the group's preferred view. Generate alternative explanations Before generating solutions, consider several plausible explanations for what is happening. A program may have low participation because of: Limited awareness Eligibility requirements Schedule Transportation Accessibility Lack of trust Program design Competing services Measurement problems Different explanations may imply different responses. Generate alternatives Once the problem is reasonably understood, generate more than one possible response. Brainstorming can be useful, especially when participants temporarily separate idea generation from evaluation. Broad idea generation does not require accepting proposals that are clearly outside legal, ethical, safety, or organizational boundaries. Work backward from a desired outcome Another useful approach is to define the condition you want to create and work backward. For example, if the goal is reliable access to a community service, ask: What would reliable access look like? What conditions would have to exist? Which of those conditions are currently missing? Which conditions can the organization influence? This approach can identify necessary steps, but it does not prove that a particular intervention will produce the desired outcome. Compare alternatives using explicit criteria Criteria may include: Evidence of effectiveness Expected benefits Costs Feasibility Equity Safety Accessibility Legal requirements Ethical considerations Community priorities Organizational capacity Sustainability Potential unintended consequences Reversibility Some criteria may matter more than others. Make those priorities explicit rather than allowing them to influence the decision invisibly. Examine tradeoffs Several alternatives may be defensible. Ask: What do we gain with this option? What do we give up? Who experiences the benefits? Who bears the costs or risks? What opportunity are we giving up by using resources here? Reframe the problem when necessary Critical analysis may show that the original problem statement was incomplete or wrong. Restate: The current situation The problem as it is now understood Important causes or contributing conditions What remains uncertain The outcomes the group hopes to achieve Reframing is not a failure of the original process. It is often evidence that the analysis has improved. Make a proportionate decision Decide using the strongest available evidence while acknowledging uncertainty. When uncertainty is high and the decision is reversible, a pilot or limited test may be appropriate. When a decision is difficult to reverse or could create significant harm, stronger evidence and review may be necessary. Continue thinking critically during implementation Critical thinking does not end when a solution is selected. Monitor: Whether implementation is occurring as intended Whether the expected results are occurring Whether assumptions remain valid Whether unexpected effects are appearing Whether some groups are affected differently Evaluate and revise Ask: What happened? What evidence supports that conclusion? What did we misunderstand? What worked? What did not? What should continue? What should change? What have we learned that applies elsewhere? A strong critical thinker is not someone who never reaches a wrong conclusion. It is someone who can recognize when a conclusion is no longer supported and revise it. In Summary Critical thinking is a vital skill in health, human service, organizational, and community work. It involves examining claims, evidence, assumptions, reasoning, context, alternatives, uncertainty, and one's own thinking before deciding what conclusion or action is justified. Critical thinking does not require automatic skepticism toward authority, conventional wisdom, institutions, or unfamiliar ideas. Nor does it mean attempting to eliminate every value, emotion, or perspective from judgment. Instead, it asks people to distinguish evidence from interpretation, make assumptions visible, seek appropriate context, compare competing explanations, evaluate the quality of information, and match confidence to the strength of the evidence. These skills are especially important in a digital environment where people encounter social media, rapidly changing information, synthetic images and video, online influencers, algorithmically selected content, and generative AI alongside traditional research and news sources. Critical thinking can be developed across ages and backgrounds. Teaching it works best when people practice the skills in meaningful subject matter and real situations, with explicit modeling, opportunities for reasoning and discussion, feedback, and metacognitive reflection. Finally, critical thinking continues after a decision is made. People should monitor results, test assumptions against what actually happens, evaluate new evidence, and be prepared to revise conclusions and actions when the evidence changes. Contributor Phil Rabinowitz Resources Online Resources Critical Thinking Across the Curriculum. Internal and external resources on critical thinking from Longview Community College, Lee's Summit, MO. The Foundation for Critical Thinking. Articles, references, links, lesson plans, etc. School and college oriented, but lots of good general material. Print Resources Brookfield, Stephen D. (1991). Developing Critical Thinkers, Reprint Edition, San Francisco, CA: Jossey-Bass, Inc. Brookfield, Stephen D. (2012). Teaching for Critical Thinking, San Francisco, CA: John Wiley & Sons, Inc.
