Redesigned Adaptive Assessment v2
The most accurate browser-based IQ-style test possible.
Full 2PL IRT, Newton-Raphson MAP estimation, time-adjusted scoring, 61 items across four difficulty levels, ~24 used per run, and detailed domain explanations. Three languages. Honest uncertainty bounds.
Richer matrix items
Multi-rule patterns (shape + rotation + fill + count simultaneously) at the hardest levels.
Varied number tasks
Arithmetic, geometric, Fibonacci-type, alternating and polynomial sequences at 4 levels.
Deep verbal reasoning
Analogies, classification, syllogistic logic, and abstract relation matching in EN/FR/SV.
Speed matters
Each item has a reference time. Faster-than-baseline correct answers contribute a small bonus to theta.
⚠ This HTML page implements research-quality methodology but lacks formal standardisation and large-sample norming. Treat results as an estimate with ±10–15 IQ point uncertainty.