Which of the following survey data collection method does not allow questons to be clarified for the respondent?
A) telephone
B) door-to-door
C) internet and mail
D) all of the above
Answer: C
Which of the following survey data collection method does not allow questons to be clarified for the respondent?
A) telephone
B) door-to-door
C) internet and mail
D) all of the above
Answer: C