<!-- A/B test readout · from Chapter 05 of The Product 360 Handbook -->

# Experiment readout · [Name] · [Date]

**Decision:** [Ship / iterate / kill], recommended by [PM], decided by [Name] on [date].

## Validity
- Sample ratio: configured [x/y], observed [x/y], check [pass / fail]
- Duration served: [dates, whole weeks]
- Data quality issues: [none / list]
- Deviations from the design doc: [none / list]

If any validity check failed, stop here: the result is not interpretable. State the cause and the rerun plan.

## Primary result
OEC: control [value], treatment [value], difference [value] with [95%] interval [low to high].

## Guardrails
| Guardrail | Threshold | Result | Pass / fail |
|---|---|---|---|
| | | | |

## Secondary metrics
| Metric | Difference | Interval | Notes |
|---|---|---|---|

## Segments
| Segment | Pre-registered or exploratory | Result |
|---|---|---|

## What we learned
[What moved, and the qualitative evidence for why. Include what surprised us.]

## Next step
[Action, owner, date]
