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st: Factor analysis with binary data
From
"Data Analytics Corp." <[email protected]>
To
[email protected]
Subject
st: Factor analysis with binary data
Date
Wed, 02 Mar 2011 12:09:37 -0500
Hi,
I have to do a factor analysis with binary survey data. I have no
problem doing the factor analysis per se (I'll develop a correlation
matrix using tetrachoric correlations), but I do have a question about
the predicted scores. They will be continuous, but I need them for
other analysis to be binary. Any suggestions for how I can take the
scores for a factor and recode them into 0/1 values. I thought of
looking at the distributions and making an arbitrary guess for a
cut-off: anything above is 1; below is 0. A first guess for a cut-off
would be 0: anything positive is 1; negative is 0. Does anyone have a
better suggestion?
Thanks,
Walt
________________________
Walter R. Paczkowski, Ph.D.
Data Analytics Corp.
44 Hamilton Lane
Plainsboro, NJ 08536
________________________
(V) 609-936-8999
(F) 609-936-3733
[email protected]
www.dataanalyticscorp.com
_____________________________________________________
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