Interviews are generally preferable to questionnaires because:
A) the quality of data tends to be higher.
B) there is less opportunity for bias.
C) they are easier to analyze.
D) they are less expensive.

Question

Quizplus · Accepted Answer

Interviewing allows for verbal communication between the researcher and the subject. Interviewing also allows collection of data from subjects who are unable or unlikely to complete questionnaires. Interviewing allows the researcher to explore meaning in greater depth than can be obtained with other techniques.
In interviews there is actually more chance of bias.
Interviews are not easier to analyze.
Interviews are more expensive because they require more time and personnel.

Interviews Are Generally Preferable to Questionnaires Because