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In 2002 and 2003, the Census Bureau conducted research to determine whether the ACS could be implemented as a voluntary, rather than mandatory, survey. It showed a decrease of over twenty percent in mail response when the survey was voluntary, and the reliability of estimates was adversely impacted by the reduction in the total number of completed interviews. This report revisits the test data and uses logit models to determine person and housing unit/household characteristics most closely related to differential response between the voluntary and mandatory methods. Also studied is whether related profile estimates for the two methods are significantly different at the national and cluster level.
Michael Ikeda, Julie Tsay, and Lynn Weidman. (2011). Exploratory Analysis of the Differences in American Community Survey Respondent Characteristics Between the Mandatory and Volunary Response Methods Center for Statistical Research & Methodology Research Report Series (Statistics #2012-01). U.S. Census Bureau. Available online at <http://www.census.gov/srd/papers/pdf/rrs2012-01.pdf>.
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