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st: RE: formula for holm adjustment in mtest


From   "Maarten Buis" <M.Buis@fsw.vu.nl>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: formula for holm adjustment in mtest
Date   Thu, 22 Jun 2006 11:23:07 +0200

--- Rohacek, Monica wrote:
> Is there anywhere I can find the formula that STATA uses for the Holm
> adjustment to the p-values?  I've tried to replicate the results by hand and
> have been unsuccessful in ways that suggest I am using a (slightly)
> incorrect formula.


Monica:
-help _mtest- gives the following formula for the Holm's correction:
p' = min(1,n(p) p), where n(p) is the number of p-s smaller than p

HTH,
Maarten


-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology 
Vrije Universiteit Amsterdam 
Boelelaan 1081 
1081 HV Amsterdam 
The Netherlands

visiting adress:
Buitenveldertselaan 3 (Metropolitan), room Z214 

+31 20 5986715

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


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