1---2name: offer-testing3description: Use when designing copy experiments to optimize hooks, offers, and CTAs.4---5
6# Offer Testing Playbooks Skill
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8## When to Use
9- Planning subject line/CTA/offer tests across email, ads, or landing pages.
10- Validating new positioning or pricing language.
11- Running copy refresh cycles for campaigns.
12
13## Framework
141. **Hypothesis** – statement of expected lift + rationale.
152. **Variable Selection** – hook, CTA, body copy, offer framing, proof element.
163. **Segmentation** – define audience splits and holdouts.
174. **Metrics** – primary KPI + guardrails (opens, CTR, CVR, CPL, unsub, spam).
185. **Analysis** – statistical significance (chi-square, z-test) or Bayesian approach.
19
20## Templates
21- Experiment brief (variable, control, variant, KPI, sample size, duration).
22- Results report (metric table, significance, insight, next steps).
23- Prioritization matrix (ICE/RICE scoring).
24
25## Tips
26- Limit to one variable per test to isolate learnings.
27- Ensure minimum sample sizes per channel before declaring winners.
28- Log tests and learnings in a shared repository.
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