Your question is Measuring Subscription Cannibalization. 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).
If we launch a new subscription model for therapists, how do you measure the cannibalization of existing services?
Discuss how you would define cannibalization, establish a counterfactual, segment affected therapists, and distinguish revenue substitution from genuinely incremental value. Explain the metrics, experiment design, analysis period, and launch decision criteria you would use.
