The best rule of thumb on follow-up mailings in mail surveys is that
A) researchers should use as many follow-ups as necessary to achieve a satisfactory response rate.
B) more than one follow-up is ineffective and may anger respondents.
C) more than three follow-up mailings is generally fruitless.
D) a copy of the questionnaire should be included with each follow-up.

Question

Quizplus · Accepted Answer

More than three follow-up mailings are generally fruitless because the response rate will not increase significantly after the third follow-up.

The Best Rule of Thumb on Follow-Up Mailings in Mail