Free IQ Test — 16-Question Cognitive Ability Challenge
A 15-minute, 16-question timed test of verbal reasoning, series, matrix reasoning, and 3-D rotation — with an estimated score band and full explanations.
16 questions
15 min
15 min limit
Instructions
16 questions, 15 minutes, one timer for the whole test. Work quickly but carefully; you cannot return to a question once submitted. Paper and pen are allowed; calculators are not needed.Original items and answer keys constructed for this package; item TYPES modeled on the public-domain ICAR four-factor structure (Condon & Revelle, 2014). No ICAR item content or scoring key reproduced.
Citations
- Condon, D. M., & Revelle, W. (2014). The International Cognitive Ability Resource: Development and initial validation of a public-domain measure. Intelligence, 43, 52-64. Construct/item type reference (icar item types: vr, ln, mr, r3d)
- https://icar-project.org Public domain icar project; items here are original constructions of the same four types