9 min read
Minimum detectable effect (MDE): how to choose it for an A/B test
What minimum detectable effect (MDE) means, relative vs absolute, and how to set it from business value and your traffic. With a worked example.
Articles about Statistical power
RSS feedArticles for product managers and marketers about Statistical power: plain explanations, examples and common mistakes.
9 min read
A/B test sample size: how many users you need
How to calculate A/B test sample size from baseline, MDE, power and significance, with a worked example and the mistakes that waste weeks.