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st: three-level gllamm - variable as a nesting variable or a predictor?


From   Lisa Marie Yarnell <[email protected]>
To   [email protected]
Subject   st: three-level gllamm - variable as a nesting variable or a predictor?
Date   Fri, 4 Oct 2013 13:46:04 -0700

Hello Statalist,

Is it possible (or meaningful) to have a variable both as a nesting
variable AND a predictor in a three-level model?

I have a three-level model with 305 observations nested within
segments of the study (segment A and segment B), which are nested in
31 persons.  id is the person id.

So the form of the model is something like:
gllamm drivesf gender aldh2cent braccent, i(segment id) family(binom)
link(logit) eform

But can I also put segment as a variable in the model to see its
direct effect on the dependent variable, contrasting segment B against
segment A?

I want to put it both as a nesting variable AND a predictor in the
model.  Is that viable?

Thank you,
Lisa

-
Lisa M. Yarnell
Department of Psychology
University of Southern California
3620 McClintock Ave.
Mailroom SGM 501, Office 826B
Los Angeles, CA 90089-1061
Office: x0-0850 or (213) 740-0850
Fax: (213) 746-9082
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