This test measures general cognitive ability (g-factor) across multiple domains, modeled after standardized intelligence assessments. It emphasizes culture-fair, nonverbal reasoning to minimize language and educational bias.
Questions increase in difficulty within each category
You may navigate between questions freely
Each question has one correct answer
No penalty for guessing — answer every question
Work quickly but carefully
Important Disclaimer: This is an informal educational tool and should not be used for any clinical purpose. While it employs established psychometric principles (g-factor measurement, difficulty-weighted scoring, z-score normalization), a clinically accurate IQ score requires a professionally administered, individually normed test such as the WAIS-V or Stanford-Binet 5. Online tests are affected by uncontrolled testing conditions, self-selection bias, and practice effects. Results should be interpreted as a rough estimate with a confidence interval of ±10 points or more.