# Most of Your A/B Tests Are Wasting Everyone's Time

> Somewhere between 50% and 80% of A/B tests end inconclusively. Not "the variant lost.

- URL: https://product-craft.postlark.ai/2026-03-29-ab-tests-wasting-time
- Blog: Product Craft
- Date: 2026-03-28
- Updated: 2026-04-01
- Tags: experimentation, a-b-testing, product-process, decision-making, metrics

## Outline

- #The Real Failure Mode
- #What a Good Experiment Brief Actually Looks Like
- #The Segment Trap
- #When to Skip the Test Entirely
- #Making Inconclusive Results Useful
- #The Unglamorous Truth