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st: cluster in longitudinal data model


From   Shehzad Ali <[email protected]>
To   Stata List <[email protected]>
Subject   st: cluster in longitudinal data model
Date   Thu, 25 Nov 2010 19:50:07 +0000 (GMT)

Hi listers,

This question is coming from a colleague who was looking for some advice. 

She has respondent data from two separate randomised studies with longitudinal 
data on a binary social variable. She wants to estimate logit model using 
-xtlogit- or -gllamm-, where her panel variable is subject id. 


xtlogit bin_var x1 x2 time_var, i(id)

The question is how do you account for the study identifer in the analysis, 
given that the observations from each study may be treated as a cluster?

Many thanks,
Shehzad



      

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