
Test one hypothesis
Write the proposed cause, change, and success measure. Include a guardrail such as lead quality so extra submissions are not mistaken for better customers. Review the whole path instead of judging one screen in isolation.
Low traffic may not support a reliable split test. Use task testing and measured improvements rather than claiming statistical certainty from a small sample. Use the findings to update the brief for the next stage.
- A written brief
- Named responsibilities
- Agreed review points




