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Re: st: Pstest bias reduction


From   Adam Olszewski <adam.olszewski@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Pstest bias reduction
Date   Tue, 27 Mar 2012 00:41:11 -0400

I like -pbalchk- more informative in this regard, since
statistic-based tests (such as t-test) have been criticized for their
dependence on sample size.
-pbalchk- reports only standardized differences and can explicitly
handle categorical variables.

I don't however find documentation in the help file if it uses the
same formulas for categorical as listed in PC Austin's tutorial:
http://www.ncbi.nlm.nih.gov/pubmed?term=19757444

I also found that -pbalchk- can give different results if a large
number of variables is tested at the same time vs. if variables are
tested separately, I am not sure why.

Adam
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