New paper: Isolating creative vs. algorithm effects in ad A/B tests via three-arm design

asusarla · x · 2026-08-25

A new working paper proposes a three-arm experimental design to disentangle creative performance from platform algorithm bias in ad A/B testing. In addition to control and standard creative arms, it adds an arm where the treatment creative is visible only to the algorithm, not users, allowing researchers to isolate the algorithm's preference for specific creatives.

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