Listening Quiz: Sử Dụng Thiết Kế Thí Nghiệm trong Đánh Giá Chính Sách – Advanced Level

1. What is the main topic of Mark and Olivia’s conversation?
2. According to Mark, what does random assignment help do?
3. What must the researchers do because of ethical concerns?
4. What can be inferred about why Olivia is interested in this method?
5. Why does Mark think experimental design is useful despite its drawbacks?

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