Power and Sample Size Calculator

SkillDev tools

Statistical power analysis and sample size determination

Instructions available. Your AI can read the instructions. Execution depends on the setup they require.

Account requirements not reviewed. Check the skill instructions before use; ahel provides instructions and does not run this skill.

Add ahel to your AI once: Claude, ChatGPT, Cursor, Claude Code or Codex. Then ask it to use this.

Then ask your AI: use the Power and Sample Size Calculator skill

What this skill tells your AI

The instructions your AI receives, as published by a5c-ai/babysitter in library/specializations/domains/science/mathematics/skills/power-sample-size-calculator/SKILL.md and read by ahel’s review.

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

Effect Size: Specify meaningful effect sizes
Power Target: Set appropriate power levels (typically 0.80)
Type I Error: Control alpha appropriately
Simulation: Use simulation for complex designs

Tools/Libraries

G*Power
pwr (R)
statsmodels

Signals

GitHub stars: 2k
Forks: 112
Last commit: Sep 2026

Advanced

Item type: skill
Key: power-sample-size-calculator
Source: github.com/a5c-ai/babysitter

github.com/a5c-ai/babysitter