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