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169 – SPEED: Statistical Computing and Sports
The Effect of Accounting for All Weight Adjustments in the Construction of Student Replicate Weights in a National, Cross-Sectional Study
Ruby E. Johnson
RTI International
Peter H. Siegel
RTI International
Replicate weights can be constructed using different procedures, including replicating some or all stages of sampling and replicating some or all weight adjustments. For the 2011-2012 National Postsecondary Student Aid Study (NPSAS:12), weights were replicated for only the poststratification weight adjustment for the second stage of sampling (student). We used data from NPSAS:12 to compare design effect estimates computed using two different approaches to replication. The two different replication approaches were 1) replicating only the student-level poststratification weight adjustment (as was done for NPSAS:12) and 2) replicating all stages of the student-level weight adjustments, which encompasses replicating weight adjustments for student-level multiplicity, unknown eligibility, nonresponse and poststratification. We compared design effect estimates to explore the differences between the variance estimates using the two approaches.