JS
REPLAY / ex-066
Win-back discount
Reviewed as if it had not run yet. The coach sees only experiments that read out before 2026-05-25.
01 THE EXPERIMENT, OUTCOME HIDDEN
HYPOTHESIS
If lapsed accounts are offered a reduced rate to return, some of them will.
PRIMARY METRICReactivation rate14.8pp baseline
EXPECTED LIFT+2ppas written at the time
AUDIENCEreturning usersincentive
READ DATE2026-05-25started 2026-04-27
02 COACH REVIEW
Review this blind?
The coach will see only what this team knew before 2026-05-25. You answer, then the real outcome is revealed and the call is scored.