# Power Analysis Calculator

> Skill for statistical power analysis and sample size calculation

- Skill: `a5c-ai/power-analysis-calculator` (Agent Skill)
- Install (CLI): `npx skillmds@latest add a5c-ai/power-analysis-calculator`
- Raw SKILL.md: https://api.skillmd.com/api/skills/a5c-ai/power-analysis-calculator/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Product & Planning
- Author: a5c-ai (https://skillmd.com/u/a5c-ai)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/a5c-ai/power-analysis-calculator

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# Power Analysis Calculator Skill

## Purpose

Calculate statistical power and required sample sizes for experimental designs to ensure adequate study power.

## Capabilities

- Calculate required sample size
- Compute statistical power
- Estimate effect sizes
- Handle multiple comparisons
- Support various designs
- Generate power curves

## Usage Guidelines

1. Specify design type
2. Define effect size
3. Set alpha and power
4. Calculate sample size
5. Generate power curves
6. Document analysis

## Process Integration

Works within scientific discovery workflows for:
- Study planning
- Grant proposals
- Protocol development
- Design optimization

## Configuration

- Statistical test selection
- Effect size specifications
- Power thresholds
- Output formatting

## Output Artifacts

- Sample size calculations
- Power analyses
- Effect size estimates
- Power curves