What Is A/B Testing: Statistical Significance and Common Mistakes
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What Is A/B Testing: Statistical Significance and Common Mistakes

Corrected by Melik Can Sariyer · on When Notes Fly · 12 July 2026 · View published page ↗

A/B testing is how companies make evidence-based product decisions. Learn how statistical significance works without jargon, how to avoid common...

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−quantified this rigorously in a 2017 paper on "always valid inference" developed while working at Airbnb
+quantified this rigorously in a 2017 paper on "always valid inference" developed while working at Optimizely

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Verified fix already fully applied in article body and references list. Other 'Airbnb' mentions in the article are legitimate, unrelated references to Airbnb's own marketplace experimentation research. No secondary leftovers found in FAQ.

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