Science-based cognitive ability assessment
Based on the International Cognitive Ability Resource, a peer-reviewed, open-source battery validated across large global samples.
75 questions with a 25-minute time limit. Speed is part of cognitive ability measurement, making scores more meaningful.
No account, no email required. Your answers are scored in your browser. Results are instant and private.
Measures abstract, verbal, numerical, and spatial reasoning — the core components of general cognitive ability (g factor).
ICAR | 75 items | Timed ~25 min | Browser-scored | Reviewed March 2026
The ICAR (International Cognitive Ability Resource) measures four types of reasoning: letter and number series, matrix reasoning, three-dimensional rotation, and verbal reasoning. There are 75 items. The test is timed at approximately 25 minutes. There is no penalty for guessing — if you are unsure, your best guess is better than leaving an item blank.
A timed, multi-domain cognitive assessment that produces your IQ score instantly.
The ICAR cognitive ability test measures four reasoning domains — abstract, verbal, numerical, and spatial — using 75 timed questions over 25 minutes. Based on the International Cognitive Ability Resource, a public-domain framework validated across multiple studies with thousands of participants.
Click Start to begin. The 25-minute timer starts when you answer your first question.
Work through text-based reasoning problems and visual matrix pattern puzzles across all four domains.
Receive your IQ score (mean 100, SD 15), domain breakdown, percentile ranking, and personalized insights instantly.
Each domain captures a distinct facet of general intelligence (g factor).
Pattern recognition, logical sequences, and deductive reasoning with novel problems.
Vocabulary, verbal analogies, reading comprehension, and logical inference from text.
Mathematical problem-solving, data interpretation, percentages, and quantitative logic.
Visual matrix patterns, shape transformations, and spatial relationship recognition.
Everything you need to know about this IQ test.
This test uses items from the International Cognitive Ability Resource (ICAR), a peer-reviewed, open-source framework developed at Northwestern University. ICAR items correlate well with established measures like Raven's Progressive Matrices. However, online tests are approximations — standardized tests like WAIS-IV must be administered by a psychologist for clinical-grade accuracy.
Processing speed is a core component of cognitive ability. Timed tests are more valid because they prevent users from looking up answers or spending unlimited time on each question. The 25-minute limit is standard for a 75-item cognitive battery.
These are matrix reasoning items similar to Raven's Progressive Matrices — widely considered the purest measure of fluid intelligence. You see a 3x3 grid of shapes with the bottom-right cell missing and choose which of four options completes the pattern.
IQ (Intelligence Quotient) is a standardized score with a mean of 100 and standard deviation of 15. About 68% of people score between 85 and 115. Scores above 130 are considered "Superior" (top 2%), and scores above 145 are "Very Superior" (top 0.1%). IQ measures analytical reasoning but does not capture emotional intelligence, creativity, or practical wisdom.
Fluid intelligence (novel problem-solving) is largely genetic but can be modestly improved through targeted cognitive training, regular exercise, quality sleep, and continuous learning. Crystallized intelligence (vocabulary, knowledge) improves throughout life with education and reading.
No. The test is completely free and anonymous. All scoring happens in your browser. You can optionally save your results with a private link for future reference.
It uses the ICAR, a peer-reviewed instrument that correlates well with clinical IQ measures. However, it is not administered under controlled conditions, so treat the result as an informed estimate rather than a clinical score.
Online scores tend to be less reliable than clinical ones. Test anxiety, distractions, fatigue, and unfamiliarity with the format can all lower your score. If the result matters to you, consider taking it again under better conditions, or consult a psychologist for a formal assessment.
Your score is a useful starting point, not a final verdict.
A score of 85–115 (25th–75th percentile) reflects average cognitive ability. Your true score likely falls within about 5 points of the number shown. Scores above 130 place you in the top 2%; scores below 70 suggest the test may not have captured your full ability — consider retesting under better conditions.
This score reflects a narrow slice of cognitive ability — pattern recognition, logical reasoning, and spatial thinking. It does not measure creativity, emotional intelligence, practical wisdom, motivation, or any of the other qualities that matter enormously in real life.
This is an educational screening tool, not a clinical assessment. Factors like fatigue, test anxiety, screen size, language background, and practice effects can all shift your score by 5–10 points or more. A clinical IQ assessment administered by a psychologist controls for these factors; an online test cannot. Please interpret your result as an approximate range, not a precise measurement.
The International Cognitive Ability Resource (Condon & Revelle, 2014) was developed as a free, open-source alternative to proprietary IQ tests. It includes four item types: letter and number series (sequential reasoning), matrix reasoning (pattern completion), three-dimensional rotation (spatial ability), and verbal reasoning (word relationships). ICAR items show strong correlations with established measures like Raven’s Progressive Matrices and WAIS subtests (r = .60–.80), making it one of the most credible free cognitive assessments available.
Cognitive ability is one piece of the puzzle. Explore how your personality and interests complement your reasoning style.
IQ measures how your mind processes information — your cognitive horsepower. But how you use that horsepower depends on personality: your curiosity (Openness), your discipline (Conscientiousness), your social approach (Extraversion), and your emotional resilience. A personality test and a cognitive test together give you a much richer self-portrait than either one alone.
This test is based on the ICAR, a public-domain cognitive ability assessment developed by Condon and Revelle (2014) at Northwestern University. The ICAR measures four reasoning domains: letter and number series (abstract), verbal reasoning, three-dimensional rotation (spatial), and matrix reasoning. In validation studies, the ICAR total score correlated r = .81 with the Shipley Institute of Living Scale and demonstrated internal consistency of alpha = .81–.93 across subtests.
Condon, D. M., & Revelle, W. (2014). The International Cognitive Ability Resource: Development and initial validation of a public-domain measure. Intelligence, 43, 52–64.
Unlike most free IQ tests that use untested question banks, SeeMyPersonality uses the published ICAR item set with validated psychometric properties. The test is timed at 25 minutes to match standardized testing conditions. Scoring is deterministic and computed in your browser — your answers are never sent to a server for score calculation.
This is an online estimation of cognitive ability for personal reflection, not a clinical IQ assessment. Standardized tests (WAIS-IV, Stanford-Binet) must be administered by a licensed psychologist. Online results can be affected by distractions, fatigue, and test conditions. Based on the ICAR framework (Condon & Revelle, 2014).