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Abstract Details
Activity Number:
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453
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Type:
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Topic Contributed
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Date/Time:
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Wednesday, August 3, 2011 : 8:30 AM to 10:20 AM
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Sponsor:
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Section on Survey Research Methods
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Abstract - #302350 |
Title:
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Variance Estimation Issues in the 2010 NSCG Two-Phase Sample Design
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Author(s):
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Michael Edmund White*+ and Jean Opsomer
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Companies:
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U.S. Census Bureau and Colorado State University
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Address:
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4700 Silver Hill Rd, Suitland, MD, 20746,
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Keywords:
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NSCG ;
ACS ;
two-phase sample design ;
variance estimation
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Abstract:
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The 2010 National Survey of College Graduates (NSCG) selected its sample using respondents to the 2009 American Community Survey as the sampling frame. The sample design was two-phase which creates variance estimation complexities. This paper discusses the issues with two-phase variance estimation and describes a proposed estimator to produce approximately unbiased variance estimates. The American Community Survey uses Successive Difference Replication (SDR) to estimate variances. This paper also discusses an evaluation plan to determine whether or not SDR best meets the NSCG estimation needs by comparing SDR variance estimates against delete-a-group jackknife and balanced-repeated replication variance estimates. Preliminary results of this comparison will be discussed and the plan for a simulation study will be described.
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