Listening Quiz: Đảm Bảo Chất Lượng Dữ Liệu trong Khảo Sát Người Thụ Hưởng – Advanced Level

1. What is the main purpose of Olivia’s discussion with Paul?
2. What does Olivia say should be used to reduce errors during data collection?
3. What does Olivia say interviewers should do about missing answers?
4. What can be inferred about Paul after the conversation?
5. According to Olivia, why should the team do random checks during the survey?

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