Cognitive Scaffold

Preparing your thinking workspace

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MENTAL MODEL · M6304

A/B Testing

A/B Testing
CreateHigh supportDesign Thinking
Included
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Version 1.0.0 · Updated 2026-07-30

CORE DEFINITION

Randomly divide users into two groups: one uses the old version (A), the other uses the new version (B), and determine which version is better by comparing data. This is the gold standard for causal inference.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

Use data to counter arguments. When the team argues endlessly over 'red button or green button', stop arguing and run an A/B test. Let reality (data) be the judge, not the person with the highest position.

anchor

Anchor fast decisions

Based on 'controlled experiments' and 'causal inference'. Random grouping controls confounding variables, so differences can be attributed to the version itself, replacing subjective arguments with data.

MINIMUM ACTION

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Practice this model in one real situation:

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Source support: Explicit

  • link
    en.wikipedia.orghttps://en.wikipedia.org/wiki/A/B_testingZH · Explicit
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