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@article{ Sakshaug2017, title = {Exploring the Effects of Interviewer- and Self-Administered Survey Modes on Record Linkage Consent Rates and Bias}, author = {Sakshaug, Joseph W. and Hülle, Sebastian and Schmucker, Alexandra and Liebig, Stefan}, journal = {Survey Research Methods}, number = {2}, pages = {171-188}, volume = {11}, year = {2017}, issn = {1864-3361}, doi = {https://doi.org/10.18148/srm/2017.v11i2.7158}, abstract = {"In an effort to reduce data collection costs survey organizations are considering more cost-effective means of data collection. Such means include greater use of self-administered interview modes and acquiring substantive information from external administrative records conditional on respondent consent. Yet little is known regarding the implications of requesting linkage consent in self-administered (as compared to interviewer-administered) surveys with respect to consent rates and consent bias. To address this knowledge gap we report the results of a linkage consent study in which sampled employees were randomly assigned to an interviewer-administered (face-to-face) or self-administered (mail or Web) interview in which consent to link federal employment records was requested. We observed a strikingly lower consent rate in the self-administered (53.9 percent) versus the interviewer-administered (93.9 percent) survey mode. However, the impact of mode on consent bias was much less severe as survey-measured correlates of linkage consent did not interact with interview mode. Moreover, while self-administration yielded larger consent biases in the linked administrative variables, on average, compared to interviewer-administration, the average relative magnitude of these biases tended to be small (less than 6 percentage points). We conclude by discussing these findings in the context of survey practice and speculating on their possible causes." (author's abstract)}, keywords = {Umfrageforschung; survey research; Datengewinnung; data capture; Datenqualität; data quality; Datenschutz; data protection; Antwortverhalten; response behavior}}