Re: st: Regresssion with pairwise deletion of missing data

[Richard Williams <Richard.A.Williams.5@ND.edu>]

At 10:34 AM 5/2/2007, Maarten buis wrote:
> --- JVillanueva@csom.umn.edu wrote:
> You can get a pairwise correlation matrix using the -pwcorr- command
> and from that (and the standard deviations) derive the the regression
> coefficients.
>
> As you already say you know, there is a good reason why it hasn't been
> implemented (and why I don't feel like implementing it): it isn't a
> good way of dealing with missing data, it is actually worse than
> listwise deletion however unintuitive that may seem (Allison 2002).
If you are bound and determined to do it anyway, after using pwcorr 
you can use corr2data to create a dataset you can then use regress 
with.  I don't know how SPSS decides on what the N is though.  The 
procedure is described on pp. 8-10 of

http://www.nd.edu/~rwilliam/stats1/OLS-Stata9.pdf


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Richard Williams, Notre Dame Dept of Sociology
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