# Ronny Kohavi on Trustworthy Experiments + win $1,999 course

Canonical: https://brew.new/browse/templates/email/pt1_k97w1ksaapgwrj8f2br99gy5qh8e5j5k

Brand: growthbook.io
Category: newsletter

![Preview of Ronny Kohavi on Trustworthy Experiments + win $1,999 course](https://cdn.brew.new/email-preview-6d7399830b25958a-tracking_r57r909qq7vhwttgprtanct84s8dvdw9-1789002494501.png)

## Email content

A “winning” test can still be wrong. Statistical significance doesn’t guarantee a positive impact. And several common issues can quietly mislead teams into shipping the wrong decision.

Sample ratio mismatch, underpowered tests, or misread p-values can make a result look better than it is.

On July 16 at 9am PT / 12pm ET, Ronny Kohavi and Luke Sonnet will show the exact checks they use to validate experiment results before acting on them.

Three live attendees will win a free seat in Ronny’s course, Accelerating Innovation with A/B Testing.

Don’t trust the next “winner” until you’ve run the checks.

Register Now

P.S. Already registered? Add it to your calendar so you don’t miss the drawing.

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_k97w1ksaapgwrj8f2br99gy5qh8e5j5k)

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