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---
name: playbook-data-science-first-ab-test
description: "A correctly powered experiment with pre-committed decision rules."
---
# Playbook: Run your first trustworthy A/B test
> A correctly powered experiment with pre-committed decision rules.
**Track:** 🗺️ Data Science & Analytics · **Domain:** Journey Playbooks · **Level:** journey · **~70 min**
**Who this is for:** Data Scientists, Analysts, Research Scientists, Product Analysts
## When to Use This Skill
A correctly powered experiment with pre-committed decision rules.
Use it whenever a matching task appears in conversation — the agent loads these instructions on demand.
## Journey Steps
1. Step 1 — Design an A/B test you can trust: start with "Define one primary metric with minimum detectable effect from business value"
2. Step 2 — Build cohort and funnel analyses that hold up: start with "Define cohorts by first meaningful action, not signup alone"
3. How it fits together: Sample size math BEFORE launch. Peeking destroys more experiments than bugs do.
### Referenced Skills
- `experimentation-ab-test-design`
- `exploratory-analysis-cohort-funnel-analysis`
## Commands
**Install all referenced skills**
```bash
npx skills add aniruddhaadak80/skills --skill experimentation-ab-test-design && npx skills add aniruddhaadak80/skills --skill exploratory-analysis-cohort-funnel-analysis
```
---
Part of [aniruddhaadak80/skills](https://github.com/aniruddhaadak80/skills) · Browse all at https://skills.sh/aniruddhaadak80/skills
