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Wagner, James, and Kristen Olson. 2011. "Where Do Interviewers Go When They Do What They Do? An Analysis of Interviewer Travel in Two Field Surveys." Joint Statistical Meetings Proceedings, Survey Research Methods,
Although interviewer-related variance and potential biases that arise when interviewers administer a questionnaire has long been studied, the role that interviewers play in obtaining contact and gaining cooperation is increasingly being explored. In this paper, we investigate the relationship between interviewer travel distance and contact rates, response rates, calls per complete, and hours per interview in two studies, the National Survey of Family Growth and the Health and Retirement Study. Using call record paradata that have been aggregated to interviewer-day levels, we examine the number of trips and number of call attempts interviewers make to sampled segments and the distance interviewers travel to segments.
Country of focus: United States.