# Effect Size Planning

> Determine effect size types and calculation methods for meta-analytic synthesis

- Skill: `yogsoth-ai/effect-size-planning` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add yogsoth-ai/effect-size-planning`
- Raw SKILL.md: https://api.skillmd.com/api/skills/yogsoth-ai/effect-size-planning/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: yogsoth-ai (https://skillmd.com/u/yogsoth-ai)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/yogsoth-ai/effect-size-planning

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# Effect Size Planning SOP

Determine the appropriate effect size metric, calculation methods, and conversion formulas for the meta-analysis.

## When to Use

- After inclusion criteria are defined
- Before data extraction begins
- When studies report outcomes in different metrics

## Input

- `outcome_measures`: Types of outcome measures across included studies
- `study_designs`: Study designs present in the evidence base

## Output

Complete effect size specification including primary metric, calculation formulas for each reporting format, and conversion procedures.

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## Available SOPs

Optional, no fixed order; the final leaf is always a sop.

| SOP | When to use |
| --- | --- |
| spawn-agent | Spawn a customized CC subagent with full MCP tool access. Used by SOPs that declare execution: subagent. |

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