Sample quality tends to be lowest in a __________ survey, and response rates generally are highest in a __________ survey.
A) face-to-face; telephone
B) face-to-face; mail
C) mail; face-to-face
D) mail; telephone
E) telephone; telephone

Question

Quizplus · Accepted Answer

Mail surveys often have lower sample quality due to non-response bias, while face-to-face surveys generally achieve higher response rates due to personal interaction.

Sample Quality Tends to Be Lowest in a __________ Survey