Volunteer sampling which may produce non-representative samples is a particular problem with
A) face to face interviews.
B) mail questionnaires.
C) group-administered questionnaires.
D) internet surveys.

Question

Quizplus · Accepted Answer

Internet surveys often rely on volunteer sampling, which can lead to non-representative samples because individuals choose whether or not to participate, potentially skewing the results towards those with strong opinions or particular interests.

Volunteer Sampling Which May Produce Non-Representative Samples Is a Particular