Re: st: Comparing multinomial models in survey data

[Richard Williams <richardwilliams.ndu@gmail.com>]

At 05:15 PM 9/16/2010, Polis, Chelsea B. wrote:
> Dear Statalist,
>
> I am doing multinomial regression using data that has been 
> svyset.  Have I correctly interpreted
> Hosmer and Lemeshow's "Applied Logistic Regression" (p 219-20) in 
> understanding that a legitimate
> approach is to ignore the survey design when comparing models (i.e., 
> when using fitstat in SPost)
> by running the models without the svy command, use the commands such 
> as fitstat to aid in selection
> of a final model, and then run the final model with the svy command 
> to obtain more accurate standard
> errors?
I suspect that nothing too horrible will happen if you do that, but 
it is hard to say. If the models are nested though, you can just use 
the test command, e.g.
webuse nhanes2f
svy: mlogit health female black rural age
test rural age


-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
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