A/B Test Design for UX with a Measurable Hypothesis
This is a ready-made prompt from the Zayenha Prompt library in Design & Creative, written for claude-sonnet-4-7. It has a main prompt to copy into the model, built-in quality guards, and a verification prompt to run in a second window to review the answer. The full text needs the Pro plan; the description is open to all.
Design a rigorous A/B test with a hypothesis, a primary metric, and a sane sample size, for product and growth teams wanting design decisions backed by statistical evidence, not the HiPPO.
Your current plan: free
Improving a high-abandonment signup step; testing button copy or form ordering; building an evidence-based design-decision culture.
Built-in quality guards
No fabricated significance or sample-size numbers without inputs
Hypothesis, variants, metrics, sample size, decision tree
Covers design, statistics, stopping rules, and decision
Baseline numbers sourced from analytics, not invented
Frequently asked questions
How do I use this prompt?
Copy the main prompt and paste it into claude-sonnet-4-7 or the model you use, replace what is in square brackets with your details, then run the verification prompt in a second window with the answer pasted in, and review it before relying on it.
Is this prompt free?
Its full text requires the Pro plan or higher. Free prompts you can copy at once without an account are on the ready-made Arabic prompts page.
Which model was this prompt written for?
It was written for claude-sonnet-4-7 and follows how that model works; you can run it on other models too, reviewing the result, since no single wording guarantees the best result on every model.