Experiment brief adapted for a growth review
Experiment review example with clear result language and business implications.
Source input
Tested a clearer generator CTA and stronger workflow proof on the landing page. Variant B emphasized time saved and structured outputs; Variant A used the older generic AI writing message. Variant B improved signups by 14% with similar traffic mix. First-generation completion also rose 9%. Confidence was acceptable but not fully conclusive across all traffic sources. Traffic skewed slightly higher toward organic search during the test. Paid traffic volume was too small to treat as decisive.
Structured output
hypothesis
The test aimed to validate whether workflow-specific value proof would outperform a generic AI-writing framing on signup intent and activation.
winner loser
Variant B is the likely winner because it improved both signup conversion and first-generation completion versus the baseline.
statistical significance
The evidence is directionally strong, but not final across every traffic source. Organic traffic provides the clearest support for the result.
business impact
The stronger workflow framing appears to improve both acquisition quality and early activation, which supports updating the main landing narrative.
decision
Roll out Variant B on the main acquisition flow, then run a follow-up experiment focused on paid traffic and headline refinement.