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107: Andres Glusman: Why Your A/B Tests Are Lying (and How to Fix Them)

Author
Leah Tharin
Published
Tue 20 May 2025
Episode Link
None

Andres Glusman, experimentation expert and former Meetup product leader, unpacks why 89% of experiments fail - and why that’s a good thing. From redesign pitfalls to balancing data with intuition, he shares hard-earned lessons on turning failure into explosive growth.

It’s not about running more tests, but smarter ones.

Timestamps & Segments

00:01:02 – 00:10:00
The Experimentation Conundrum
Andres breaks down why most experiments fail, the "VC mindset" for testing, and why a 65% loss rate is better than industry standards.

00:10:05 – 00:20:00
Low Traffic, Big Swings
Strategies for companies with limited traffic: why timid tweaks waste time and how to bundle changes for measurable impact.

00:20:05 – 00:30:00
Redesigns: When to Rip the Band-Aid
Why most redesigns backfire, how to test without tanking metrics, and the political minefield of shipping "VP-approved" flops.

00:30:05 – 00:40:00
Storing (and Ignoring) Experiment Data
The lifecycle of experiment insights, why social proof is overrated, and how to avoid repeating past mistakes (hint: spreadsheets).

00:40:05 – 00:49:00
Hot Takes & Must-Reads
Andres’ controversial read on stale A/B testing dogma + book recs to overhaul your product playbook.

Hot Takes
🔥 “89% failure rate? You’re doing it right.” – Andres
🔥 “If stats aren’t significant after 4 months, ship it anyway—your samples are probably garbage.” – Leah

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Leah on Linkedin / Twitter / Youtube

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