1.15 Comment on the following field situations, making recommendations for corrective action:

a One of the interviewers has an excessive rate of refusals in face-to-face home interviews.

b In a CATI situation, many phone numbers are giving a busy signal during the first dialling attempt.

c An interviewer reports that, at the end of the interviews, many participants asked if they had answered the questions correctly.

d During validation of the fieldwork, a participant reports that they cannot remember being interviewed over the telephone, but the interviewer insists that the interview was conducted.