Which of the Following Is a Disadvantage of Telephone Interviews

Multiple Choice

Which of the following is a disadvantage of telephone interviews?

A) They make the supervision of interviewers difficult.
B) They are more time consuming than in-home interviews.
C) They result in high refusal rates.
D) They are more expensive than in-home interviews.
E) They use random digit dialing, which adversely affects the ability to generalize survey results.