IQ tests, explained
What each well-known intelligence and aptitude test is, who publishes it, what it contains, how it is scored and how to practice. Plain descriptions, not affiliated with any publisher.
Want your own number? The test is 25 visual puzzles, about 12 minutes, no sign-up.
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Clinical intelligence tests
- 01WAIS-5: Wechsler Adult Intelligence Scale, Fifth EditionThe 2024 Wechsler adult test: indexes, subtests and scoring.
- 02WAIS-IV: Wechsler Adult Intelligence Scale, Fourth EditionFour indexes, a full-scale IQ and seven labels.
- 03WISC-V: Wechsler Intelligence Scale for ChildrenThe Wechsler test for school-age children.
- 04WPPSI-IV: Wechsler Preschool and Primary Scale of IntelligenceThe Wechsler test for young children.
- 05Stanford-Binet Intelligence Scales, Fifth Edition (SB5)Five factors in verbal and nonverbal form.
- 06Woodcock-Johnson Tests of Cognitive AbilitiesA CHC-based cognitive battery used in schools and clinics.
- 07KBIT-2: Kaufman Brief Intelligence Test, Second EditionA brief verbal and nonverbal intelligence screener.
- 08RIAS-2: Reynolds Intellectual Assessment ScalesVerbal, nonverbal and memory indexes in a shorter battery.
Nonverbal and culture-reduced tests
Try one · Abstract Reasoning
Which tile completes the grid?
Tap the option you think is right, or show the answer.
Show the answer
The missing tile has a large solid circle (option 2).
How to solve it
- Start with the first row and name what changes from tile to tile.
- Every row and every column contains each shape (square, circle and star) exactly once.
- Every row and every column contains each fill (solid, outline and hatched) exactly once.
- The size (large) stays the same in every tile.
- Check the rules on the second row, then apply them to the third.
- So the missing tile has a large solid circle.
That was 1 puzzle. The full test has 25.
Mensa
School ability tests
Workplace and military aptitude tests
- 01The Wonderlic testA short, fast workplace cognitive test.
- 02The CCAT (Criteria Cognitive Aptitude Test)A timed pre-employment aptitude test.
- 03The PI Cognitive AssessmentA timed workplace test of verbal, numerical and abstract reasoning.
- 04ASVAB and AFQT scores, explainedThe military aptitude battery and its percentile score.
Free tools: IQ percentile calculator · Percentile to IQ converter · IQ score chart
Related
- No. 01Types of IQ testsClinical, nonverbal, school, workplace and online tests.
- No. 02WAIS-5The 2024 Wechsler adult test: indexes, subtests and scoring.
- No. 03The major IQ tests comparedWhat each major test measures, and why the numbers differ.
- No. 04Practice testsTen timed questions, an instant practice score, no sign-up.
- No. 05Online vs clinical IQ testsWhat each kind of test is for, and when you need which.
25 puzzles · about 12 min
Find your IQ in 12 minutes.
25 visual puzzles, free to take. Your full result, with your estimated IQ, percentile and five-area breakdown, is $4.95 one time.
Free to take. Full result $4.95, one time. No subscription.