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Re: st: Comparing weighted and unweighted distributions via Chi2 test


From   Austin Nichols <austinnichols@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Comparing weighted and unweighted distributions via Chi2 test
Date   Thu, 9 Jun 2011 12:04:46 -0400

Steve--
On the related regression comparison, see also e.g.

Winship, Christopher, and Larry Radbill. 1994. "Sampling Weights and
Regression Analysis." Sociological Methods and Research 23(2):230-257.

DuMouchel, William H., and Greg Duncan. 1983. "Using Sample Survey
Weights in Multiple Regression Analyses of Stratified Samples."
Journal of the American Statistical Association 78(383):535-542.

On Thu, Jun 9, 2011 at 11:45 AM, Steven Samuels <sjsamuels@gmail.com> wrote:
>
> Thanks for the reference, Stas.
>
> The article Stas refers can be downloaded from http://www.stat.cmu.edu/~brian/905-2008/papers/Pfeffermann-ISR-1993.pdf
>
> The Hausman-inspired procedures test the hypothesis that the weights can be ignored. According to Pffermann, examining the differences between weighted and unweighted estimates can be very important; so a hypothesis test is not out of place.  Duru, the original poster, apparently wants to test the difference between estimates with original design weights and those with the same weights modified to correct for non-response.  That's a related, but different issue.
>
> The ad-hoc test I proposed *might* be valid for comparing means and proportions, but I don't know that it would be valid for comparing other statistics.
>
> Steve

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