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Detect Interference in Ops Experiment

HardA/B Testing & Experimentation00:00
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Your question is Detect Interference in Ops Experiment. Take a moment with it on the right.

Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).

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Problem

Scenario

You work on an operations team running an experiment in a marketplace where actions in one area can affect outcomes in nearby areas. Early readouts look promising, but you worry that treatment may be changing behavior outside the assigned units and biasing the results.

Question

How would you determine whether network effects or interference could bias this operations experiment, and how would that change your experimental design and analysis?