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David Sert

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Building a Test-and-Learn Framework for Experimentation Teams
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Building a Test-and-Learn Framework for Experimentation Teams

#abtesting #productmanagement #experimentation #analytics
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6 min read
Post Hoc Power Analysis: Why Recalculating Power After a Null Result Fails
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Post Hoc Power Analysis: Why Recalculating Power After a Null Result Fails

#statistics #abtesting #datascience #analytics
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6 min read
One-Tailed vs Two-Tailed A/B Tests: Which Should You Run
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One-Tailed vs Two-Tailed A/B Tests: Which Should You Run

#statistics #abtesting #datascience #analytics
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7 min read
Google Content Experiments vs Optimizely: What Actually Changed
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Google Content Experiments vs Optimizely: What Actually Changed

#abtesting #optimizely #analytics #webdev
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6 min read
Champion/Challenger Testing vs A/B Testing: When the Older Method Still Wins
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Champion/Challenger Testing vs A/B Testing: When the Older Method Still Wins

#abtesting #statistics #machinelearning #datascience
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7 min read
Sample Ratio Mismatch: Is Your A/B Test Broken?
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Sample Ratio Mismatch: Is Your A/B Test Broken?

#abtesting #statistics #datascience #debugging
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11 min read
Prevent Optimizely from being blocked by ad-blockers using AWS
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Prevent Optimizely from being blocked by ad-blockers using AWS

#abtesting #javascript #webdev #analytics
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3 min read
Optimizely vs Amplitude: Experimentation Compared
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Optimizely vs Amplitude: Experimentation Compared

#abtesting #analytics #optimizely #saas
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8 min read
How the Optimizely Stats Engine Works
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How the Optimizely Stats Engine Works

#statistics #abtesting #optimizely #datascience
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9 min read
Feature Flag Best Practices for Production Systems
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Feature Flag Best Practices for Production Systems

#featureflags #devops #webdev #abtesting
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11 min read
False Discovery Rate Control in A/B Testing
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False Discovery Rate Control in A/B Testing

#statistics #abtesting #datascience #analytics
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11 min read
Experiment Design for A/B Testing: A Practical Framework
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Experiment Design for A/B Testing: A Practical Framework

#abtesting #statistics #productmanagement #datascience
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12 min read
Running Multiple A/B Tests at Once: When Overlap Is Safe
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Running Multiple A/B Tests at Once: When Overlap Is Safe

#abtesting #statistics #experimentation #analytics
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7 min read
Sequential Testing in A/B Tests: When Peeking Is Safe
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Sequential Testing in A/B Tests: When Peeking Is Safe

#abtesting #statistics #datascience #analytics
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10 min read
Multi-Armed Bandit Testing: How It Works and When to Use
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Multi-Armed Bandit Testing: How It Works and When to Use

#abtesting #machinelearning #statistics #datascience
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11 min read
How to Choose a Minimum Detectable Effect (MDE)
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How to Choose a Minimum Detectable Effect (MDE)

#abtesting #statistics #analytics #datascience
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9 min read
Reach Significance Faster: CUPED Variance Reduction
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Reach Significance Faster: CUPED Variance Reduction

#abtesting #statistics #datascience #analytics
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10 min read
Testing AI Models with Feature Flags: LLM Prompt Optimization
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Testing AI Models with Feature Flags: LLM Prompt Optimization

#ai #abtesting #optimizely #machinelearning
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13 min read
Build a Custom Analytics Integration for Optimizely Web Experimentation
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Build a Custom Analytics Integration for Optimizely Web Experimentation

#optimizely #javascript #analytics #webdev
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14 min read
Server-Side A/B Testing with Optimizely: A Practical Guide
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Server-Side A/B Testing with Optimizely: A Practical Guide

#abtesting #optimizely #webdev #devops
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9 min read
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