Thank you, Richard.
Jason
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Richard Williams
Sent: Thursday, April 13, 2006 3:07 PM
To: [email protected]
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: [email protected]
WWW (personal): http://www.nd.edu/~rwilliam
WWW (department): http://www.nd.edu/~soc
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