# [Webinar] Avoid False Positives with Ronny Kohavi

Canonical: https://brew.new/browse/templates/email/pt1_k97p0m2ns3ab2drhhg2hz61ftn8e40ed

Brand: growthbook.io
Category: newsletter

![Preview of [Webinar] Avoid False Positives with Ronny Kohavi](https://cdn.brew.new/email-preview-fc37ed786062ab69-tracking_r57gb1p8ynt7zt5ff5fet63b318dtvj9-1789002491516.png)

## Email content

Most teams have shipped a “winning” test that didn’t actually change anything, or worse, had a negative impact. The result looked solid, but the underlying data or setup was never trustworthy in the first place.

On July 16 (9am PT / 12pm ET), Ronny Kohavi, who wrote the book on trustworthy experiments, joins Luke Sonnet, Head of Experimentation at GrowthBook, to take apart real A/B tests that looked like wins and weren’t.

They’ll cover:

Why power calculations are non-negotiable

Reading p-values and false positive risk correctly

Detecting sample ratio mismatch and other hidden data issues

A checklist for validating experiment results before you act

Attend live and you’re in the drawing for one of three free seats in Ronny’s course, Accelerating Innovation with A/B Testing.

See you there,

-Ashley

Save My Seat

P.S. Can't make it live? Register anyway for the recording.

Manage Subscriptions

©2026 GrowthBook

1950 West Corporate Way, Suite 34560

Anaheim, CA 92801

United States

[Open and remix this design](https://brew.new/browse/templates/email/pt1_k97p0m2ns3ab2drhhg2hz61ftn8e40ed)

[Browse email designs](https://brew.new/browse/templates)