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Activity Number:
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208
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Type:
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Contributed
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Date/Time:
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Monday, July 30, 2007 : 2:00 PM to 3:50 PM
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Sponsor:
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Section on Survey Research Methods
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| Abstract - #310046 |
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Title:
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A Comparison Between a Traditional RDD Survey and a Telephone Survey with Cell-Phone-Only Populations
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Author(s):
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Sunghee Lee*+ and David Grant and J. Michael Brick and Sherm Edwards
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Companies:
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University of California, Los Angeles and University of California, Los Angeles and Westat and Westat
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Address:
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10960 Wilshire Blvd, Los Angeles, CA, 90024,
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Keywords:
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Coverage bias ; Cell-phone only population ; RDD surveys
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Abstract:
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This study examines potential coverage bias of traditional RDD surveys associated with exclusion of cell-phone only populations. Unlike previous studies where in-person survey data were divided based on reported telephone usage status to examine the bias, this study overcomes that limitation by using data from two telephone surveys. The first comes from the 2005 California Health Interview Survey (CHIS), a large-scale traditional RDD survey. The second comes from a pilot study conducted as a part of CHIS 2005. In the pilot, adults were sampled from households with cell-phone only and then administered the full CHIS interview on cell phones. Because the pilot data represent those excluded in RDD surveys, comparisons of estimates between the two surveys will allow us to assess the coverage bias. We will use estimates across a wide range of demographics and health characteristics.
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