When using a mailed questionnaire, research has shown that, after ________ follow up letter(s), additional follow ups will generate relatively few additional responses.
A)one
B)two
C)three
D)four

Question

Quizplus · Accepted Answer

Research has shown that after two follow-up letters, additional follow-ups tend to generate relatively few additional responses when using a mailed questionnaire. This suggests that the majority of respondents who are likely to reply will have done so after receiving two reminders.

When Using a Mailed Questionnaire, Research Has Shown That, After