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The objective of this study was twofold: (1) to gain in-depth understanding of the living situations in which individuals were more likely to be duplicated, and (2) to test issues related to comprehension, privacy, and confidentiality, and assess the exhaustiveness of the TCFU questions for covering various living situations prone to duplication. All interviews were conducted in a face-to-face mode with respondents who were suspected duplicates from the 2010 census or were reporting for household members who were suspected duplicates. The qualitative study was an in-depth examination of household situations that cause duplication. A total of 50 qualitative interviews were carried out. The goal of the cognitive study was to evaluate if the Targeted Coverage Follow-Up questions functioned as intended to uncover suspected duplications and detect any concerns related to privacy, confidentiality, and level of detail requested from the respondents. A total of 226 cognitive interviews were completed. Qualitative interviews revealed that moving, custody situations and second homes led to duplication. In the cognitive interviews, overall, we were able to identify the duplicated address for almost 70 percent of the participants we interviewed, and in 95 percent of those cases, the duplicated address was provided during the TCFU administration. The report discusses issues of privacy as well as recommendations for future testing and research on duplication.
Jennifer Hunter Childs, Sarah Heimel, and Ryan King. (2013). Qualitative Interviewing with Suspected Duplicates and Cognitive Testing of the Targeted Coverage Follow-up (TCFU) Interview. Center for Survey Measurement Study Series (Survey Methodology #2013-09). U.S. Census Bureau. Available online at <http://www.census.gov/srd/papers/pdf/ssm2013-09.pdf>.