st: Re: Using STATA to analyze complex national datasets

[David Airey <david.airey@Vanderbilt.Edu>]

Here is a page that describes what happens when you aggregate measures 
or dissaggregate measures from different levels:

http://ericae.net/pare/getvn.asp?v=7&n=1

It also gives a comment on the utility of multilevel models in this 
situation. I don't know if this is pertinent to the comments by people 
doing survey analysis. Interesting page though.

-Dave

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