Cognitive Snapshot (ICAR-extended)
Six cognitive domains in ~18 minutes. Verbal reasoning, number series, math, vocabulary, logic, and open-ended problem solving.
Who this is for
- Best for
- Anyone curious about cognitive style, students preparing for standardized tests, professionals in roles where reasoning patterns matter.
- Use when
- You want a quick read on verbal reasoning, pattern-finding, math, and logic without paying for a full IQ assessment.
- Skip if
- You have test anxiety, or you've taken WAIS or a similar professionally-administered cognitive battery in the past year.
- Pairs well with
- The Big Five. Free Big Five personality test online.
What this measures
A hybrid cognitive ability snapshot across six domains. Verbal reasoning (word meanings and relationships), number series (pattern recognition), math reasoning (word problems), vocabulary (word knowledge), formal logic (syllogisms), and open-ended problem solving (you type the answer). Built on ICAR (a public-domain research instrument by Condon & Revelle, 2014) plus originally-authored items for the subtests ICAR doesn't cover. This is NOT a clinical IQ test; for a full cognitive assessment, see a licensed psychologist administering WAIS-IV or similar.
- Verbal ReasoningAnalogies, definitions, relational word logic.
- Letter / Number SeriesPattern recognition in sequences.
- Math ReasoningWord problems that need numeric thinking, not calculator speed.
- VocabularyWord knowledge: meaning, antonym, nuance.
- Formal LogicSyllogisms and valid-vs-invalid reasoning.
- Open-Ended Problem SolvingNo choices. You type the answer yourself.
How it works
- 46 items, ~18 minutes. Most are multiple choice; the last 6 are open-ended. You type the answer.
- Score + sub-scores, free. Your total correct and per-subtest breakdown appear immediately.
- Full report after subscribing. Percentile estimates vs ICAR norms, per-item explanations, and what each subtest is really measuring. Unlocked via Thought Mechanic subscribe.
FAQ
Is this an IQ test?
No. This is a short cognitive ability snapshot using verbal reasoning and pattern-recognition puzzles from the open-source ICAR (International Cognitive Ability Resource). A real IQ assessment requires a proctored, professionally-administered instrument like WAIS-IV. Use this for self-reflection only.
What is the ICAR?
The International Cognitive Ability Resource is a public-domain, peer-reviewed cognitive ability item bank by Condon & Revelle (2014, Northwestern University). It's used in research as an open alternative to copyrighted instruments like Raven's Progressive Matrices. Released under Creative Commons (CC BY 4.0).
Why no matrix reasoning items?
Matrix and 3D-rotation items in the ICAR are image-based. We've deferred them to a later release pending a separate visual-asset license review. The verbal and letter/number series items are self-contained text and ship in this initial version.
What does my percentile mean?
Your percentile estimate compares your performance to a reference adult population (approximated from ICAR norms). A 70th percentile means you scored higher than ~70% of that sample. Sub-scores break down verbal reasoning vs pattern recognition.
Why is this not an IQ test?
Real IQ tests (WAIS-IV, Stanford-Binet) are proctored, take 60–90 minutes, cover 8–10 subtests, and require a trained psychologist to administer and interpret. They also cost ~$300–500. This snapshot uses 46 items across 6 cognitive domains and lacks the proctoring and breadth needed for a defensible IQ score. It's a self-reflection tool, not a credential.
What does my percentile actually mean for daily life?
Honestly: less than people think. Cognitive ability correlates with job performance, but Conscientiousness predicts more variance in life outcomes than IQ does in most fields. Use the score to identify which domains feel sharp vs slow for you, and remember that effort, sleep, and learned skills matter far more day-to-day.
Can cognitive ability be improved?
Specific subskills (vocabulary, working memory, math fluency) improve markedly with practice. General fluid intelligence ('g') is more resistant, brain-training apps don't reliably transfer beyond the trained task. The biggest evidence-backed levers are sleep, cardiovascular exercise, learning a complex new skill (instrument, language), and reducing chronic stress.
How does ICAR compare to WAIS or Raven's?
WAIS-IV (Wechsler) is the clinical gold standard but proprietary and expensive. Raven's Progressive Matrices is widely used in research and is also copyrighted. ICAR was built specifically to be a free, open alternative; correlations with both WAIS and Raven's are moderate to strong (~0.6–0.8 in published validation studies).
Is verbal reasoning the same as vocabulary?
No. Vocabulary measures crystallized knowledge, words you've learned and stored. Verbal reasoning measures fluid use of language, drawing inferences, completing analogies, spotting relationships between concepts. The two correlate but tap different cognitive systems. This test covers both as separate subscales.
Will lack of sleep affect my score?
Yes, meaningfully. Cognitive performance drops 10–30% after sustained sleep restriction, with the biggest hits to working memory, attention, and complex reasoning. Take this test rested if you want a stable estimate. Caffeine helps short-term attention but doesn't restore performance to your well-rested baseline.
What's a normal score for my age?
ICAR norms are approximated from adult samples (18+); the test isn't age-corrected. Fluid reasoning peaks in your 20s and declines slowly into older adulthood. Crystallized abilities like vocabulary keep growing into your 60s. So 'normal' depends on your age, but percentiles here are calibrated to a mixed-adult sample as a rough reference point.
Can I take it more than once?
Yes, but you'd be re-testing on the same items, which inflates your score. For research-grade re-testing you'd need a different item set. This snapshot is best used once for self-reflection.