ab testing

Read A/B Test Results Without Fooling Yourself

Interprets a finished test against the ways results mislead — peeking, novelty effects, segment mining, and metrics that moved for other reasons. U...

Decide Whether You Have Enough Traffic to A/B Test

Runs the sample-size and duration math before you build a test, and tells you honestly when your traffic can't support one — plus what to do instea...