What is the main advantage of interviews?
A
Option A: People are more likely to be honest
B
Option B: The response rate is high
C
Option C: The interviewer can guess the age of the respondent
D
Option D: They are not time-consuming
E
Option E: The researcher can ask more detailed questions
Correct answer B. The response rate is high
Explanation
Interviewers can approach people directly, explain the study and persuade them to take part, so interviews achieve much higher response rates than postal questionnaires.
Answer checked 11 October 2026 · How we write and check questions
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