Which of the following has typically been shown to be the most effective and the least biasing incentive used in mail surveys to improve response rates?
A) An enclosed ball-point pen
B) A monetary incentive
C) A lottery ticket
D) A movie voucher

Question

Quizplus · Accepted Answer

A monetary incentive has been shown to be the most effective and least biasing incentive in mail surveys to improve response rates. It is a clear and tangible benefit for participants and does not introduce any potential biases towards certain groups (e.g. those who prefer certain types of movies or who have a higher likelihood of winning a lottery). Enclosed items such as pens or vouchers may also improve response rates, but they are not as consistently effective as a monetary incentive.

Which of the Following Has Typically Been Shown to Be