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Re: st: Differences in regression slopes
At 01:34 PM 2/20/2008, Austin Nichols wrote:
Keele & Park, 2006)." Some of this work is peer-reviewed and some
not, but in every case, caveat lector.
Adding to Austin's list: For another explanation of the problem along
with a different proposed solution, see J. Scott Long's presentation at
http://www.indiana.edu/~jslsoc/ftp/talks/long-nd-2007-04-16.pdf
I view Long's approach as sort of high tech descriptive
statistics. It will tell you if differences exist between groups,
but it leaves open the question as to why the differences are there
(differences in effects or differences in residual variation?) I
find it kind of unsatisfactory in that it doesn't provide a stronger
causal explanation of differences, but then again that is probably
better than a causal explanation whose estimates are wrong.
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Richard Williams, Notre Dame Dept of Sociology
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