According to paragraph 3, which of the following is most important for an effective survey? A. An interviewer's ability to measure respondents’ feelings. B. A sociologist who is able to inter
According to paragraph 3, which of the following is most important for an effective survey?
A. An interviewer's ability to measure respondents’ feelings.
B. A sociologist who is able to interpret the results.
C. A high number of respondents.
D. Carefully worded questions.