Re: st: ordinal logistic regression diagnostic

[Maarten buis <maartenbuis@yahoo.co.uk>]

--- On Mon, 26/4/10, amatoallah ouchen wrote:
> I'm currently  running an ordinal logistic regression,
> all the predictors are categorical, In order for my
> analysis to be valid, my model has to satisfy the
> assumptions of ordinal logistic regression, the problem
> is that all what I could find out is material related to
> the diagnostic of the logistic regression and more
> rarely some hints related to ologit but that don't seem
> to work for my cas

There is a lot of material available from this websit by
Rich Williams: <http://www.nd.edu/~rwilliam/gologit2/>

You can also consider the -brant- command, which is part
of -spost9- (see: -findit spost-). Rich and I did ran
quite a bit of simulation to assess the performance of 
that test, see the thread starting with:
<http://www.stata.com/statalist/archive/2008-04/msg00660.html>
I believe the end conclusion was that each category of
your dependent variable needs to contain "enough" 
observations for the test to perform well. 

Hope this helps,
Maarten

--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany

http://www.maartenbuis.nl
--------------------------


      

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