Ad Test Designer

Designs paid-ad creative/landing A/B/n and incrementality tests and reads them out: hypothesis, variant matrix, sample-size/duration/power plan, a documented significance read, and a promote/kill decision. This skill owns the experiment design + statistical decision — it does not produce the variants (ad-creative-builder does), does not read back one already-shipped change vs a control over a window (paid-measurement-loop does), and does not do cross-channel reporting (performance-analyzer does). It scores the ROAS O (Offer) lever, with S CTR/CVR as the test signal.

Quick Start

Design an A/B test for two landing-page hero variants. Baseline CVR is 3%, I want to detect a 15% lift. Goal is DR.

I have 4 RSA creative variants to test on a prospecting set. Build the variant matrix, sample size, and run duration.

Here's my finished test results CSV (variant, sessions, conversions). Is the winner significant — promote or kill?

Skill Contract