What it is
This skill helps you design and run A/B tests (comparing two versions to see which performs better) for websites, emails, ads, or any digital experience. It guides you through forming a hypothesis, calculating how much traffic you need, choosing what to measure, and analyzing results with statistical rigor. You get a structured experimentation process that produces reliable, actionable insights—no guesswork.
What it does
- Helps you write a clear hypothesis for what you're testing and why
- Calculates how much traffic and time you need for statistically valid results
- Guides you in choosing primary, secondary, and guardrail metrics to track
- Explains how to design test variants that isolate a single meaningful change
- Analyzes results and tells you whether the difference is real or just noise
Use it when
- You're launching a new landing page and want to know which headline converts better
- You're tweaking email copy or button text and need to measure impact objectively
- You want to build a growth experimentation program and run tests continuously
- You're comparing two design approaches and need statistical confidence before choosing
Add this skill to your AI
Copy the source URL and ask your AI to add it. Most coding agents — Claude Code, Cursor, Codex, Gemini CLI, OpenCode, Windsurf — will fetch and install it for you.
Try this prompt:
Add this skill to my project: https://github.com/coreyhaines31/marketingskills/tree/main/skills/ab-test-setup