At 08:40 AM 4/16/2012, Gitit Kadar Satat wrote:
I'm analysing ordinal survey data using the survey commands (in
particular - ologit). I've tried to apply the Brant test to check for
the "parallel slopes" assumption but stata retrieved an error message
which stated that Brant doesn't work on ologit models with weights.
Could anyone suggest a test for parallel slopes that can be used on
ologit models that uses survey data (that is; with survey commands)?
Many thanks in advance!
Gitit Kadar Satat
The -gologit2- program, available from SSC, can test for violations
of parallel lines when using survey commands. For more, see
http://www.nd.edu/~rwilliam/gologit2/index.html
Also see section 3.3 of
http://www.stata-journal.com/sjpdf.html?articlenum=st0097 . Note that
you use the -svy- option instead of the -svy- prefix.
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Richard Williams, Notre Dame Dept of Sociology
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