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UX Atlas
TermCraft conventionFoundational

A/B Test

Showing two versions to different people and comparing the results.

Definition

A controlled experiment comparing variants by randomly assigning users and measuring a predefined metric.

Craft convention. True because the industry converged on it. Breaking it costs familiarity, not correctness.

In plain language

Showing two versions to different people and comparing the results.

Example

Testing two checkout layouts with the sample size and stopping rule fixed in advance.

Each link says what the connection is, so you can tell a principle from an alternative from a thing people mix this up with.

Deeper reading

The full entry behind this definition.

Related concept

Connected closely enough to change how you apply this.

Nearby in the Atlas

Adjacent territory, found through shared tags rather than a stated link.