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st: Poststratification weights


From   "Michael I. Lichter" <mlichter@buffalo.edu>
To   statalist@hsphsun2.harvard.edu
Subject   st: Poststratification weights
Date   Wed, 26 Nov 2008 12:38:52 -0500

In the Stata svy commands, what is the difference between creating your own poststratification weight (e.g. using -survwgt-) and treating it as a pweight (through -svyset [pw=x], strata(y)-) vs. telling Stata (through -svyset, poststrata(y) postweight(z)-) that you have a postratification variable and cell count? This shouldn't affect point estimates, but how does Stata treat the two differently with respect to variance calculations or anything else? Thanks. (I would RTFM if I had access to one, and I didn't find a FAQ or any discussion on the topic. I am using Stata 9.2, FWIW.)

Michael
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