Intelligence
A 50-item general IQ test, covering four reasoning domains: Verbal (16), Logical/Letter-Number Series (9), Abstract/Matrix Reasoning (11), and Spatial/3D Rotation (14).
Answer all 50 questions to the best of your ability. The test has four sections - verbal, logical, abstract, and spatial reasoning. If you do not know an answer, select "I don't know".
This is a full-length general intelligence test: 50 items across four reasoning domains - verbal reasoning (16 items), logical and letter-number series (9), abstract matrix reasoning (11), and spatial 3D rotation (14). Sampling several distinct domains matters, because general intelligence is precisely what diverse reasoning tasks share: a single task type measures a narrower ability, while a balanced battery estimates the general factor.
Plan for roughly 40 minutes of focused work. Items get harder as you progress, and your result is placed on a scale that compares you with other people, not as a pass or fail. Your free result shows whether you scored below average, within the average range, or above average, plus one reasoning domain; the exact score, your exact position among other people, and the full domain breakdown come with the detailed report.
The test estimates general cognitive ability (the g factor) - the broad capacity to reason, see patterns, and solve novel problems - through four domains:
A century of research consistently finds that performance on diverse cognitive tasks is positively correlated - the basis of the general factor, g. Composite scores built from several reasoning domains, like this test, are among the most reliable measurements in psychology and predict educational attainment, job performance, and training success better than any other single psychological variable.
Scores here are reported on the familiar IQ metric (population mean of 100, standard deviation of 15) compared with the results of other people, with a documented ceiling: an online, unsupervised test can meaningfully distinguish scores within the broad population range but cannot certify extreme values, so results are capped at 160. For high-stakes purposes (clinical or educational placement), only an individually administered, professionally supervised test is appropriate - this test is built for serious self-assessment.
Read more about our standards: How our tests are built and validated.
Taking the test is free, and your free result shows whether you scored below average, within the average range, or above average, with one reasoning domain revealed. The items follow classical psychometric formats (series, matrices, rotation, verbal analogies), your score is compared with other people on the standard IQ metric, and the instrument was built and reviewed by a PhD psychometrician. The full report, free with an account, adds the exact score and your exact position among other people, the full domain-level breakdown, and interpretation.
Your raw performance is converted to the standard IQ scale with a population mean of 100 and a standard deviation of 15. A score of 115 means you scored higher than about 84 of every 100 people; 130 corresponds to roughly the top 2 percent.
Honest measurement. Estimating scores beyond 160 requires more extreme items and individually supervised administration than any online test can provide. Tests that report 180 or 200 online are entertainment, not measurement.
Practice on similar item types produces modest, format-specific gains (familiarity, strategy, speed), which is one reason retest scores rise slightly. The underlying general ability is far more stable. For an accurate result, take the test rested and focused, and treat a retest within weeks with skepticism.
About 40 minutes. The test rewards sustained concentration, so take it in one quiet sitting rather than across interruptions.
Created and reviewed to professional scientific standards. See how our tests are built and validated.