Glossary/Measurement & Attribution/A/A Test
Measurement & Attribution
A/A Test
An experiment showing identical versions to two groups to verify the testing tool splits traffic and measures results correctly.
By Brandon Mina·CEO, BrandPilot AI·Updated November 2026
Short answer
An A/A test is an experiment that shows identical versions of a page or experience to two groups to verify that the testing tool splits traffic and measures results correctly. Because the versions are the same, any significant difference indicates a problem with setup, randomization, or tracking that must be fixed before running real tests.