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st: RE: RE: Measures of association for a small sample


From   "David Radwin" <dradwin@mprinc.com>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: RE: Measures of association for a small sample
Date   Tue, 10 Jan 2012 09:49:56 -0800 (PST)

Good point. For differing views on whether significance tests are
appropriate for population data, please see:

http://andrewgelman.com/2011/10/how-do-you-interpret-standard-errors-from-
a-regression-fit-to-the-entire-population/

or the shorter URL: http://tinyurl.com/7xa2pxo

David
--
David Radwin
Research Associate
MPR Associates, Inc.
2150 Shattuck Ave., Suite 800
Berkeley, CA 94704
Phone: 510-849-4942
Fax: 510-849-0794

www.mprinc.com


> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-
> statalist@hsphsun2.harvard.edu] On Behalf Of Lachenbruch, Peter
> Sent: Tuesday, January 10, 2012 7:32 AM
> To: statalist@hsphsun2.harvard.edu
> Subject: st: RE: Measures of association for a small sample
> 
> If you have the entire population, why do you need significance tests?
> Isn't the measure sufficient?
> 
> ________________________________________
> From: owner-statalist@hsphsun2.harvard.edu [owner-
> statalist@hsphsun2.harvard.edu] On Behalf Of Francisco Rowe
[frowe@ucn.cl]
> Sent: Tuesday, January 10, 2012 4:35 AM
> To: statalist@hsphsun2.harvard.edu
> Subject: st: Measures of association for a small sample
> 
> Hi,
> 
> Sorry for taking advantage of statalist for this -I am trying to measure
> the association between two variables with a reduced number of
> observations (13) which constitutes my entire population.
> 
> I have utilised pairwise correlation coefficients (pwcorr) and
regression
> using an Iteratively Reweighted Least Squares (IRLS) estimation (rreg)
(on
> cross-sectional data). However, given some of the assumptions of these
> measures, the results can be questioned. For this reason, I would like
to
> implement some additional tests or measures on my data.
> 
> Would it be possible to have some guidance on this?
> Are regressions based on IRLS useful in this context?
> Which non-parametric measure can it be useful?
> 
> Thanks in advance.
> 
> Francisco.

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