How Tiny Button Effects Kill Your A-B Test Results

Lucas and Luna dig into the 'button effect' — the subtle, often invisible ways that changing one element in an A/B test (like a button's size, color, or wording) can ripple through user behavior and distort results. They use a real example from a SaaS company that tested a green versus red CTA button: the red button won by 12%, but when they dug deeper, they found it was actually driving fewer high-value signups. They explain the concept of 'interaction effects' where a button change affects other metrics like time-on-page and scroll depth, and how to isolate those effects with multivariate testing and guardrail metrics. The episode offers a practical framework: always measure secondary metrics, run five-minute user tests before launching a full A/B test, and use a 'button effect audit' checklist to avoid misleading conclusions. #ABTesting #ConversionRateOptimization #ButtonEffect #UserExperience #SaaS #CTAButton #MultivariateTesting #GuardrailMetrics #InteractionEffects #LandingPage #CROStrategy #DigitalMarketing #UserBehavior #FexingoBusiness #BusinessPodcast #MarketingPodcast #DataDrivenMarketing #ConversionOptimization Keep every episode free: buymeacoffee.com/fexingo