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Re: st: 3-level model for crime victimization


From   Erik Alda <erik.alda@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: 3-level model for crime victimization
Date   Tue, 25 Sep 2012 19:59:30 -0400

thanks so much for the advice.

On Tue, Sep 25, 2012 at 11:45 AM, JVerkuilen (Gmail)
<jvverkuilen@gmail.com> wrote:
> On Tue, Sep 25, 2012 at 9:41 AM, Erik Alda <erik.alda@gmail.com> wrote:
>> Dear Statalisters
>>
>> I am running a, so far, 2 level model on crime victimization using a survey
>> of 8 neighborhoods in a large city in Brazil. The firs level is individual
>> level predictors and the second level is neighborhood level predictors.
>> Since the survey is not representative of the whole municipality, would I be
>> able to include a 3rd level with citywide variables to estimate the effect
>> of policy?
>
> I don't see why you can't include it though your level 3 N is somewhat
> small. As long as the sample sizes per neighborhood aren't reasonably
> even it should run OK, though. The fact that the survey isn't
> representative is a study limitation and affects what conclusions you
> can draw from it, but that's separate from whether there's level 3
> heterogeneity in the sample you do have. In some cases having the
> external generalizability of a a representative sample is mandatory.
> In other case it's not.
>
>
> --
> JVVerkuilen, PhD
> jvverkuilen@gmail.com
>
> "Out beyond ideas of wrong-doing and right-doing there is a field.
> I'll meet you there. When the soul lies down in that grass the world
> is too full to talk about." ---Rumi
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-- 

Erik Alda
Doctoral Student
Department of Justice, Law and Society
School of Public Affairs
The American University, Washington, D.C.
Alt.e-mail: ea3466a@american.edu
*
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*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/


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