8 A/B testing mistakes every engineer should know

Written version of this video - https://posthog.com/blog/ab-testing-m... Subscribe for more - https://www.youtube.com/@PostHog?sub_... Get signup for PostHog for free - https://app.posthog.com/signup More content like this - https://posthog.com/blog Follow us on Twitter -   / posthog   In this video, we go over 8 A/B testing mistakes every engineer should know and avoid. 0:00 Intro 0:12 Including unaffected users 0:52 Simpson's paradox 1:30 No predetermined duration 1:59 Not testing 2:50 Counter metrics 3:26 Seasonality 4:00 Unclear hypothesis 5:11 Relying too much on A/B tests 5:51 Outro