# Critical Thinking Defined: Why the Definitions Don't Agree Canonical URL: https://headwayskills.com/knowledge/decision-making/critical-thinking-defined/ Markdown URL: https://headwayskills.com/knowledge/decision-making/critical-thinking-defined.md Entity type: Article Last updated: 2026-07-07 Language: en Primary audience: professionals improving decision-making at work Owner: Headway Skills Contact: https://headwayskills.com/contact/ ## Short answer Critical thinking is purposeful, self-regulatory judgment. Where the standard definition comes from, its five working parts, and the half most lists omit. ## Key facts - Title: Critical Thinking Defined: Why the Definitions Don't Agree - Category: Decision Making - Primary skill: Decision-Making - Related skills: Building Self-Awareness, Building Resilience - Primary keyword: critical thinking defined - Source page: https://headwayskills.com/knowledge/decision-making/critical-thinking-defined/ ## What this page covers - Critical thinking is purposeful, self-regulatory judgment. Where the standard definition comes from, its five working parts, and the half most lists omit. - Practical guidance for critical thinking defined - How this topic connects to Decision-Making ## Detailed explanation Critical thinking is *purposeful, self-regulatory judgment*: deliberately working out what information means, evaluating how good the evidence behind it is, drawing only the conclusion that evidence supports, explaining your reasoning to others, and correcting it when it goes wrong. Plainly put, it is [deciding what to believe or do](/knowledge/decision-making/decision-making-process/), on purpose, with your own thinking under review. If you have looked this up more than once, you have probably noticed the definitions don't match. A dictionary gives you one thing, a job advert another, a workplace article a four-item list that overlaps with neither. That isn't sloppiness. Nearly all of them descend from one source — and once you can see the original, the disagreements stop being confusing and start being informative. ## Where the standard definition comes from The definition above is not a paraphrase. It comes from the Delphi Report, a 1990 statement of expert consensus produced by a multinational, cross-disciplinary panel of scholars led by Peter Facione. The panel's full formulation is that critical thinking is "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." Two words carry most of it. **Purposeful** means this is something you do deliberately. It is an activity, not a temperament — you are either running the process on a specific claim in front of you or you aren't, and nobody runs it by default on everything they meet. **Self-regulatory** means your own reasoning is inside the scope of what gets examined. Not just the report you were sent or the argument the other department made — your own conclusion, and how you reached it. Shorter definitions almost always drop this half, and it changes the meaning of the term. Everything else is a compression of this. Merriam-Webster's version — applying reason and questioning assumptions in order to solve problems, evaluate information, and discern biases — is the same content in a sentence. The workplace explainers on Indeed, Forage, and Asana converge on observation, analysis, inference, and communication, which is the panel's material renamed. Each source drops different pieces, which is why no two definitions you have read line up. One thing worth clearing up before the parts: as Monash University's study-skills materials point out, the "critical" here descends from the Greek *kritikos*, meaning able to judge or discern. It has nothing to do with fault-finding. If you have been quietly worried that thinking critically at work means becoming the person who objects to things, the word itself says otherwise — and the first thing it asks you to judge is your own conclusion. ## Critical thinking defined as five working parts The Delphi panel enumerated six core cognitive skills — interpretation, analysis, evaluation, inference, explanation, and self-regulation. In practice the first two are so entangled that it is easier to hold the set as five. They are not a checklist you march through in order; they are five different things that can go wrong, and most people are fluent in some while skipping others entirely, without noticing which. ### Interpretation and analysis: working out what is actually being claimed This is understanding what a message, dataset, brief, or argument says and how its parts relate — which sentence is the claim, which ones are the reasons offered for it, and what is being assumed but never stated aloud. It is comprehension work, happening before any judging at all. That is its distinguishing feature: you cannot evaluate a claim you have misread. It is also why so many workplace disagreements that look like disputes about conclusions turn out to be two people reading the same paragraph differently. ### Evaluation: judging whether the evidence supports the claim Evaluation asks how credible a source is and how strong the link is between the evidence offered and the conclusion drawn. This is where hard facts replace impressions. The distinctive move is subtler than it sounds: evaluation targets the *quality of the support*, not the truth of the conclusion. A true conclusion can rest on terrible evidence, and a well-sourced claim can still be wrong. Noticing that something might be right for bad reasons is what separates evaluation from simply agreeing or disagreeing. ### Inference: drawing the conclusion the evidence will bear Inference is the step from evidence to judgment — including the judgment that the evidence isn't yet enough to conclude anything, and the recognition of what would have to be true for it to be. It is the only one of the five that adds something new rather than examining what is already there, which is precisely why overreach lives here: going a little further than the data licenses, because the extra distance is where the useful-sounding answer sits. ### Explanation: making your reasoning visible Explanation is stating not just your conclusion but the grounds for it — what you considered, what you weighed, what you rejected and why. The Delphi panel treated it as a core skill in its own right, and the workplace lists fold it in under communication. It is the only outward-facing part: the other four improve the quality of your thinking, this one makes that quality legible to anyone else. It is also the part most likely to be behind a manager's comment that they wanted "more critical thinking" on something you had, in fact, thought carefully about. ### Self-regulation: auditing your own reasoning Self-regulation is monitoring your own thinking for bias, error, and motivated reasoning, and correcting it in flight. It sits in the headline phrase of the definition, which tells you how central the panel thought it was. It is the only part pointed inward rather than at somebody else's claim, and the one popular lists most reliably drop — which is much of why the term gets mistaken for a license to critique other people. It comes with a structural catch: the habits you skip are invisible from inside, because skipping them doesn't feel like skipping anything. That makes an honest self-inventory hard, and worth using something built for the job — a free skills check will tell you [which habits are already solid](https://assessment.headwayskills.com/), and the ones that aren't yet are learnable rather than fixed. ## The half most definitions leave out The Delphi Report's second contribution is the one that rarely survives into the short versions. The panel held that critical thinking consists of dispositions as well as skills — open-mindedness, flexibility, fair-mindedness, and a willingness to reconsider. The reason it matters is mechanical rather than moral: skill without disposition is inert. Someone can be entirely capable of evaluating evidence and simply not do it when the evidence points somewhere inconvenient — nothing in their ability changed, their willingness did. For most people that is where the gap actually sits: not intelligence, but habit, which is a considerably better place for it to be. It also explains why the standard advice fails. Sources like the University of Tennessee at Chattanooga's critical thinking resources list what the skill is meant to prevent: [emotional reasoning](/knowledge/resilience/types-of-cognitive-distortions/), oversimplification, [unexamined assumptions](/knowledge/decision-making/challenging-assumptions/), and [intolerance of ambiguity](/knowledge/decision-making/indecisiveness/). What the lists rarely mention is that these arrive automatically and fast, well before deliberate reasoning has started. You do not decide to jump to a conclusion. So "think harder" is useless as an instruction — what works is a habit that interrupts, at the point where the first answer shows up. One common claim does hold up without qualification: sources from the University of the People to the Inter-American Development Bank describe the skill as transferable across every field and unlikely to go obsolete, which follows from the five parts concerning how you handle a claim rather than what the claim is about. ## The skills that make this easier to handle Read back over the five parts and notice how little of the difficulty is informational. None of them asks you to know more than you know. They ask you to decide with incomplete facts, to treat your own view as a thing to be checked rather than defended, and to keep reasoning after your first reaction has arrived. Those are habits, and they have names. **Decision-Making** is where the five parts stop being abstract and attach to something real: a call you have to make, inside your actual authority, before a deadline, on facts that are never complete. The practices are specific — use data and hard facts, get another opinion and particularly from someone likely to disagree, slow down when you're rushed or emotional, allow some uncertainty, accept a good-enough answer instead of waiting for a perfect one. It also names the traps the five parts exist to prevent: confirmation bias, overconfidence, anchoring on the first figure you heard, and staying with a failing plan because of what you already sank into it. **Building Self-Awareness** is the equipment self-regulation runs on. Auditing your own reasoning means knowing what you bring to it — the unconscious biases you hold about groups, backgrounds, or roles, and the deeper beliefs about achievement, acceptance, or control that drive you to overreact when a conclusion of yours gets questioned. None of that becomes visible by looking harder from the inside, which is why feedback, actively asked for and properly received, is the working instrument here rather than a courtesy. **Building Resilience** covers the case the definitions ignore entirely: your reasoning is at its worst when you are annoyed, rushed, or defending something. It names the errors that show up then — filtering out what doesn't fit, jumping to conclusions, mind reading, all-or-nothing thinking — and locates them in the gap between an event and your reaction to it. The correctives double as thinking discipline: look for an alternative explanation, ask what you would tell a friend in the same position, work out the realistic probability rather than the vivid one. None of the three is a fixed trait, which means each can be checked and each can be moved. The **free** Job Skills Test does exactly that — a straight read on [where each of these stands](https://assessment.headwayskills.com/) right now, alongside the other nine work skills the framework treats the same way, in case what's slowing your judgment isn't the one you assumed. ## Where you already do some of this Some of the five parts probably describe things you already do without labeling them — rereading a request because something in it didn't parse, asking where a number came from, noticing that you had picked your answer before you finished reading. Worth counting those rather than discounting them. Where there are gaps, they sit in practice rather than in capability. None of the five requires you to become a more analytical sort of person; they are procedures, and procedures can be adopted by anyone who decides to run them. That matters more as time passes, because judgment tends to become a larger share of the job rather than a smaller one — the calls get less reversible as more of the work is yours to decide, which is a fair argument for finding out where you stand while the stakes are still modest. You have something to start from, too: the six-part original rather than an abridgement of it, which is more than most people bring to this conversation. ## Which parts are already yours What's left is the specific question the definition can't answer: which of these you already run on instinct, and which you skip without noticing. The **free** Job Skills Test is a short self-assessment of your work skills that shows you where you stand across all twelve — including the decision-making, self-awareness, and resilience habits everything above depends on — and points you at the one worth building first. **[Take the skills test](https://assessment.headwayskills.com/)** *Free, takes about 7 minutes, and your results appear on screen as soon as you finish.* ## Who this is for - Professionals building practical workplace skills - Readers looking for specific, usable work advice - Managers, educators, and coaches supporting career readiness ## Common questions ### What is this guide about? Critical thinking is purposeful, self-regulatory judgment. Where the standard definition comes from, its five working parts, and the half most lists omit. ### Which Headway skill does this connect to? This guide connects primarily to Decision-Making. It also relates to Building Self-Awareness, Building Resilience. ### What is the recommended next step? Use the free Work Skills Test to reflect on which work skill to improve next. ## Related pages - https://headwayskills.com/knowledge.md - https://headwayskills.com/knowledge/decision-making.md - https://headwayskills.com/knowledge/self-awareness.md - https://headwayskills.com/knowledge/resilience.md - https://headwayskills.com/work-skills-test.md ## Citation guidance Use the canonical page when citing this content: https://headwayskills.com/knowledge/decision-making/critical-thinking-defined/ Preferred summary: "Critical thinking is purposeful, self-regulatory judgment. Where the standard definition comes from, its five working parts, and the half most lists omit." ## Change log - 2026-07-07: Content collection version published.