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RE: st: RE: Saving Inter-item Correlations or Alphas as New Variables


From   "Sarah Edgington" <sedging@ucla.edu>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: RE: Saving Inter-item Correlations or Alphas as New Variables
Date   Fri, 3 Jun 2011 18:13:35 -0700

.
What do you mean by alpha?  If you're using Cronbach's alpha it's constant
across all cases in the sample by definition, right? 
-Sarah

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Justina Kamiel
Grayman
Sent: Friday, June 03, 2011 3:53 PM
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: RE: Saving Inter-item Correlations or Alphas as New
Variables

That helps, but that gives me the same alpha for all respondents. I want the
individual alphas for each case. Anyone know how to do that?


On Wed, Jun 1, 2011 at 8:54 PM, Sarah Edgington <sedging@ucla.edu> wrote:
> .
> I assume you're using the command -alpha- to get the interitem
correlations?
> If so -help alpha- shows what results Stata stores.
> I think what you want is:
>        gen alpha=r(alpha)
> Of course if you aren't using -alpha- then you'll need to be more 
> specific about what you're actually trying to do.
>
> Hope that helps.
>
> -Sarah
>
> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Justina 
> Kamiel Grayman
> Sent: Wednesday, June 01, 2011 5:40 PM
> To: statalist@hsphsun2.harvard.edu
> Subject: st: Saving Inter-item Correlations or Alphas as New Variables
>
> Hi,
>
> Does anyone know how to "save" or "store" averaged interitem 
> correlations or alphas in STATA as new variables for each case?
>
> Thanks!
> --
> Justina Kamiel Grayman
> Doctoral Student, Psychology & Social Intervention New York University
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>



--
Justina Kamiel Grayman
Doctoral Student, Psychology & Social Intervention New York University

*
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