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RE: st: Testing the IIA assumption after running the mlogit

From   Patricia Yu <>
Subject   RE: st: Testing the IIA assumption after running the mlogit
Date   Wed, 11 Jul 2012 23:18:26 -0400

Dear Dr. Williams,

Thank you for your response and suggestion. I will create dummy variables.

Thanks again,

Dissertator in Higher Education
Department of Educational Leadership & Policy Analysis
School of Education
University of Wisconsin-Madison
(608) 698-8108

-----Original Message-----
[] On Behalf Of Richard Williams
Sent: Wednesday, July 11, 2012 11:23 PM
Subject: Re: st: Testing the IIA assumption after running the mlogit

At 08:16 PM 7/11/2012, Patricia Yu wrote:
>Dear Statalist,
>After running the multinomial logistic regression model, I would like 
>to test the independence of irrelevant alternatives assumption (IIA). 
>However, I heard that the Stata command "mlogtest, iia" no longer works 
>with factor variables. So, what Stata command should I use to test the 
>IIA assumption?

-mlogtest- is a command written by Long and Freese that is part of their
-spost9- package. I imagine the easiest thing would be to just not use
factor variables; compute any dummies yourself if necessary.

Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
HOME:   (574)289-5227
EMAIL:  Richard.A.Williams.5@ND.Edu

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