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🧪 Advanced Psychometric Simulator - Reliability, Validity & Sample-Size Precision

Comprehensive psychometric simulation with psychological testing, measurement, and assessment tools for understanding human behavior and mental processes.

Geology & Earth Science2DModerate60 FPS📱 Mobile-adapted🌍 Earth

⚙ Under the hood

Explore classical test theory: adjust test length, item difficulty, item discrimination, and sample size to see live reliability (Cronbach's alpha), validity, and a sample-size-driven confidence interval band around the reliability estimate that narrows as the sample grows and widens as it shrinks.

PsychometricsTestingAssessment

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install