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Re: st:Command for clustering without sampling

From   Stas Kolenikov <>
Subject   Re: st:Command for clustering without sampling
Date   Tue, 31 Aug 2010 12:44:24 -0500

Looks like sample selection will be a bigger problem than clustering,
but apparently you had no control as to who will be in the sample, in
the end. (In other words, you have a convenience, rather than a
probability, sample, don't you?)

On Tue, Aug 31, 2010 at 9:56 AM, Nanlesta Pilgrim <> wrote:
> Hello All!
> I am trying to figure out which stata command I should use given the
> dataset.  Basically, we collected information in clinics across three
> states.  It was not the manner in which we would have preferred but we
> did not sample clinics nor state due to the nature of the study. In a
> sense, there really was no "cluster sampling," however, participants
> attending the same clinics will have similar experiences than those
> attending other clinics.  Participants were also not sampled given the
> type of participant we were trying to recruit. Our main interest is
> how experiences at baseline clinic visit influence behavior at
> follow-up.   In running the analyses, I'm debating over what command
> to use to control for "clustering,"  given participants were
> interviewed within clinics within states.  I've contemplated (1)gee,
> (2)svy, (3)logit with clustering option, and (4)logit controlling for
> state and clinic.  Any guidance would be very helpful!
> Thanks,
> Nandy
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Stas Kolenikov, also found at
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