It may not be possible for all interviewers to train on the questionnaire at the same time.
If this is the case, the supervisor should make a training tape for interviewers to listen to while
following along with a copy of the questionnaire and the APQ. During the training tape, just as
he or she would during an in-person training, the supervisor should read the entire questionnaire,
point out any skips in the questionnaire, and provide any relevant background information about
the study.