Re: st: Issue with specifying multilevel model in Stata 13

[Phil Clayton <philclayton@internode.on.net>]

I think you're after something more like:

melogit gender treatment || site:

I have found this book very helpful for learning how to construct multilevel models in Stata (it doesn't cover the new multilevel commands introduced in Stata 13 - but the syntax is much the same):
http://www.stata-press.com/books/mlmus3.html

Phil

On 22/08/2013, at 5:53 AM, Michèle Muñoz-Miller <michele@analytica-inc.com> wrote:

> Hello all,
> I need some help with multilevel model syntax.  What I am specifically
> trying to do is establish baseline equivalence with respect to gender
> between the treatment and control groups in my sample, using a multilevel
> glm to account for the clustering.  The design is such that students are
> nested within sites, but it is the SITES that have been randomized to
> treatment or control.  Because of this randomization structure, I need for
> the treatment variable to be at level 2. And because I am simply trying to
> conduct a test of proportions to establish baseline equivalence while
> accounting for clustering, I don’t have any other independent variables in
> the model at either level (other than treatment at level 2).
> 
> I am trying to have Gender as the dependent variable, NO independent
> variables at level 1 (only the logit link function), and the variable of
> “treatment” at level 2, since the randomization occurred at level 2.
> 
> I have been using this syntax:  meglm gender || treatment site:  
> 
> Stata is able to compute it, but I am not convinced that I have written it
> correctly.  Could someone please confirm that this is what I am supposed to
> do?
> 
> Thanks!
> 
> Michele
> 
> 
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