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Re: st: Using the 2008 American National Election Study with Stata v.11


From   Richard Williams <Richard.A.Williams.5@ND.edu>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>, "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Using the 2008 American National Election Study with Stata v.11
Date   Wed, 14 Oct 2009 21:35:58 -0400

At 04:20 PM 10/14/2009, Peter Wielhouwer wrote:
Is anyone familiar with using the 2008 NES with Stata? I have two
specific questions:

1. Which weight command is most appropriate for the data? Based on the
Stata UG, it seems that the -iweight- syntax is most appropriate, but is
that correct?

I am not familiar with the data set, but I would be amazed if iweights were the way to go. My guess is you want pweights. googling around found this recent paper:

ftp://ftp.electionstudies.org/ftp/nes/bibliography/documents/nes012427.pdf

If you google around some more though, maybe you can find something easier to wade through; it is nice when a data set explicitly tells you how to set the weights in Stata.

2. In the ANES 2008 user guide, we are advised, "due to the complex
sample design of the ANES, sampling errors and related statistics
(including confidence intervals, p-values, t-tests, and all other tests
of statistical significance) should not be calculated using methods
intended for simple random samples." In light of this, which would be
the appropriate statistics to use in Stata?

I think the correct question is not what statistics should I use, but what statistical methods should I use to get the correct statistics. Since you have Stata 11, you should also have the SVY manual available in pdf form. Just click help/ PDF documentation. If bookmarks are open then on the left hand side you'll see the svy manual. After you've gone over the opening explanatory material, the section on svy estimation will highlight the many commands you have available. You'll probably want commands like svy: tabulation, svy: mean, svy: regress, svy: logit, etc.


-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
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EMAIL:  Richard.A.Williams.5@ND.Edu
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