Statalist The Stata Listserver


[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

RE: st: ordinal response variables in logistic regression


From   "Jian Liu" <jliu@brocku.ca>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: ordinal response variables in logistic regression
Date   Thu, 13 Apr 2006 14:25:16 -0400

Thank you, Richard.

Jason 

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Richard Williams
Sent: Thursday, April 13, 2006 3:07 PM
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: ordinal response variables in logistic regression

At 12:43 PM 4/13/2006, Jian Liu wrote:
>Dear list -members,
>
>Please ignore it if you have read it before.
>
>I'm trying to use logistic regression models to analyze the association
>between SES and physical activity levels. My dependent variable is physical
>activity level, which are grouped into three levels:  a. regularly (ref),
b.
>occasionally, and infrequently. My questions are:
>1. Can I conduct two separated logistic regression models to examine the
>impact of SES on physical activity levels
>     a. DV (regularly vs occasionally)
>     b. DV (regularly vs infrequently)
>or I have to run logistic regression with physical activity levels as
>ordinal response variables?
>2. if using two separated models is acceptable, is there anything missing
in
>comparing to using logistic regression with ordinal response variables?
>
>3. what is the stata codes for this type analysis?

You most likely want the Stata routines -ologit- or -oprobit-.  Other 
routines that might be appropriate include mlogit (which makes no 
ordinality assumption), slogit, oglm, gologit2 or goprobit.  To get a 
better rundown on your alternatives, see the excellent Long and Freese book:

http://www.stata.com/bookstore/regmodcdvs.html


-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
FAX:    (574)288-4373
HOME:   (574)289-5227
EMAIL:  Richard.A.Williams.5@ND.Edu
WWW (personal):    http://www.nd.edu/~rwilliam
WWW (department):    http://www.nd.edu/~soc 

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index