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Twitch: False Negatives Are Killing Your Best Product Ideas

Blog post from GrowthBook

Post Details
Company
Date Published
Author
Ashley Stirrup
Word Count
1,280
Company Posts That Month
25
Language
English
Hacker News Points
-
Post removed?
No
Summary

In a discussion on The Experimentation Edge podcast, Arun Bodapati, director of data science at Twitch, emphasizes the critical importance of preventing false negatives in experimentation, which can lead to potentially valuable ideas being disregarded and shelved for years. Unlike false positives, which typically get scrutinized and corrected, false negatives often go unnoticed and can have a lasting detrimental impact by institutionalizing incorrect conclusions. Bodapati advocates for rigorous preparation before running experiments, including clearly defining hypotheses in plain English, ensuring reliable enrollment triggers, and using broad "explore" experiments to avoid over-narrowing that could limit statistical power. He highlights the necessity of understanding the mechanisms behind positive results and warns against relying solely on numerical outcomes without a clear explanation of user behavior. A case study at Twitch regarding subscription pricing demonstrates how methodical experimentation and causal inference have shifted pricing strategy from being an untouchable area to a continuously adjustable lever, informed by reliable data and analysis.

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