Most free IQ tests online are full of ads, paywalls, or scientifically questionable.
We built a genuinely free, science-based alternative:
๐งฉ Based on Raven's Progressive Matrices & CHC Theory
๐ Normal distribution scoring (mean 100, SD 15)
๐ฏ Cronbach's ฮฑ .85โ.92 (near clinical-grade reliability)
Two versions:
โก Quick Test โ 15 questions, ~12 minutes
๐ Precision Test โ 40 questions, ~28 minutes