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Categories: Assessment , Education , Psychology
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Cognitive reflection measures how often you override fast, gut-level answers and engage deliberate reasoning. The Cognitive Reflection Test (CRT) presents deceptively simple problems whose most obvious solution is usually incorrect. By comparing your first impulse with a more reflective calculation, the CRT gauges the mental shift from intuition toward logic.

This seven-question screen captures your choice on each brain-teaser, immediately tallies correct responses, and visualises the outcome with a minimalist charting layer. Because scoring equals the number of correct answers, your final figure between zero and seven instantly signals reflective tendency. Client-side storage keeps every selection private yet encodes them in the URL so results can be shared.

Professionals, students, and lifelong learners use the CRT-7 to raise awareness of biases that influence everyday judgements—from budgeting to strategic planning. Repeated use highlights progress in deliberate thinking and encourages metacognitive habits that foster sound reasoning. Avoid interpreting the score as intelligence; it only reflects one thinking dimension. Results do not constitute a clinical diagnosis.

Technical Details:

Concept Overview

Cognitive reflection describes the mental capacity to inhibit immediate yet often erroneous answers in favour of slower analytic reasoning. The CRT-7 extends the classic three-item test to seven calibrated puzzles covering arithmetic, logic, language, and framing illusions. Each item is designed so an intuitive response conflicts with the correct solution derived through systematic analysis, making total correct answers a simple but reliable proxy for reflective-thinking propensity.

Core Equation

Score= ∑i=17 ci

Here ci equals 1 when your response to item i matches the validated answer, otherwise 0.

Interpretation

  • Low – 0-2 correct: intuition dominates reasoning.
  • Medium – 3-4 correct: balanced intuitive and analytic thought.
  • High – 5-6 correct: frequent reflective override of first impressions.
  • Very High – 7 correct: habitual analytic checking of intuitions.

Variables & Parameters

ParameterMeaningTypical Range
responseiUser’s chosen answer to item iOne of four options
correctiValidated solution to item iSingle value
ScoreTotal correct answers Σ0 – 7
LevelCategorical band derived from scoreLow | Medium | High | Very High

Worked Example

If five answers are correct and two are incorrect, Score = 5. That places the participant in the High band, indicating frequent reflective reasoning.

Assumptions & Limitations

  • The assessment gauges reflective tendency, not general intelligence.
  • Each puzzle assumes basic numeracy and English comprehension.
  • Unlimited time may inflate scores caution.
  • Cultural wordplay could alter perceived difficulty.

Edge Cases & Error Sources

  • Random guessing produces unstable, usually low results.
  • Accidental selections count unless manually reviewed.
  • Screen-reader phrasing can change problem semantics.
  • Publishing the encoded URL reveals answers to others.

Scientific Validity & References

The original CRT was introduced by Shane Frederick (2005). Subsequent studies by Toplak, West, and Stanovich confirm its predictive power for decision-making quality. Seven-item versions improve reliability while remaining brief.

Privacy & Compliance

The tool runs entirely in your browser, processes no sensitive personal data, and aligns with general data-protection regulations.

Step-by-Step Guide:

Follow these actions sequentially to obtain an accurate reflection score.

  1. Start the assessment to display the first puzzle.
  2. Read the problem carefully before answering.
  3. Select one option; the progress indicator updates automatically.
  4. Use the question list to revisit uncertain items.
  5. After all seven responses, review your score and donut visual.
  6. Copy the encoded URL to compare results with colleagues or future attempts.

FAQ:

Is my data stored?

No. Answers remain solely in your browser and vanish on refresh.

Is this a clinical test?

No. It offers informal insight and should not guide medical or therapeutic decisions.

Can I retake the CRT-7?

Yes, but repeated exposure may reduce diagnostic value as puzzles become familiar.

What if English is my second language?

Literal translations may hide wordplay, potentially changing puzzle difficulty.

Why are there exactly seven items?

The expansion raises reliability while keeping completion time under two minutes for most users.

Glossary:

Cognitive Reflection
Ability to override intuitive responses with analytic thought.
Intuitive Bias
Fast, effortless judgement prone to systematic error.
Analytic Thinking
Deliberate, rule-based reasoning requiring more effort.
CRT-7
Seven-item expansion of the original three-question CRT.
Encoded URL
Shareable link containing anonymised answer string.