The prompt
Your product launched a feature in two markets but not three others. Sketch a diff-in-differences analysis to estimate the causal impact, including the assumptions and where they break.
Concepts this question tests
How to practice it in PrepOS
PrepOS's adaptive queue surfaces this question when you calibrate to a matching target level and your weakest concepts overlap with what it tests. Open the practice simulator and select the round type to start a rep with this prompt.
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