On the first evening of data collection, you may want to provide an initial briefing via
telephone for the interviewers and call center manager working on your job. This is your
opportunity to provide specific information about your study, the questionnaire, and your
expectations. The supervisor for your job should be present at the briefing, and at least a few of
the interviewers who will be working on your job. This way, you have in-house experts working
on your study