Power and Sample Size Calculator Purpose Provides statistical power analysis and sample size determination capabilities for experimental design. Capabilities - Power analysis for common tests (t-test, ANOVA, chi-square) - Effect size calculation - Sample size estimation - Simulation-based power analysis - Multi-level model power analysis - Sequential analysis design Usage Guidelines 1. Effect Size : Specify meaningful effect sizes 2. Power Target : Set appropriate power levels (typically 0.80) 3. Type I Error : Control alpha appropriately 4. Simulation : Use simulation for complex designs Too…