Which of the following has NOT been shown to be effective in decreasing the number of refusals?
A) The use of incentives
B) Selling the respondent on the value of the research
C) Use of experienced interviewers
D) Guarantees of anonymity
E) All of the above have been shown to be effective.

Question

Quizplus · Accepted Answer

All the options listed (A, B, C, D) have been shown to be effective in decreasing the number of refusals, making option E the correct choice.

Which of the Following Has NOT Been Shown to Be