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Activity Number: 284
Type: Invited
Date/Time: Tuesday, August 11, 2015 : 8:30 AM to 10:20 AM
Sponsor: IMS
Abstract #314516 View Presentation
Title: Design and Estimation Considerations for Stratum Jumping in the National Survey of College Graduates
Author(s): Jay Breidt* and Jean D. Opsomer and Michael White
Companies: Colorado State University and Colorado State University and U.S. Census Bureau
Keywords: complex survey ; weighting ; weight smoothing
Abstract:

The National Survey of College Graduates (NSCG) is conducted by the US Census Bureau on behalf of the National Science Foundation. The NSCG's primary focus is on the science and engineering workforce. Frame information for sampling is obtained from the American Community Survey (ACS). A graduate may have an ACS stratum with relatively low importance (hence a low sampling rate and a high sampling weight), while in fact belonging to an important NSCG domain. The high sampling weight of such a "stratum jumper" leads to unstable estimates and variance estimates. Options for addressing such stratum jumpers at both the design and the estimation stage are considered. Theoretical comparisons are supplemented by a detailed simulation study, designed to reflect many of the actual features of the NSCG.


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