Interviewer-related measurement error in attitudinal research: a nonexperimental study

Prior research efforts have attempted to identify the extent to which interviewers bias survey data. Interviewer characteristics such as age, sex, race and social class have been widely studied, as have the effects of certain interviewer attitudes. These previous works, however, have examined the effect of only one or two of these variables upon responses. The current research incorporates interviewer demographic variables, social distance measures, and interviewer attitudinal indicators into the analysis to ascertain their relative impact upon respondent attitudes. Findings include: (1) interviewer demographic characteristics and social distance measures have no significant effects upon responses; and (2) interviewer attitudes exert a statistically significant but small influence upon respondent attitudes.