On 6/26/07, John Randall <[EMAIL PROTECTED]> wrote:
The significance of the denominator comes in more in multifactor
experiments.  Although you may have a lot of subjects, they are sliced
several ways.  The major inferential technique is analysis of
variance, where you are comparing ratios of variances on the slices.
The denominators can have a significant effect here (and appear as
degrees of freedom, for example in the F statistic).

Ok, I guess I can see this being a major issue for multivariate
contexts.

I've not thought through those issues very much (and have at
best academic understanding of f distributions -- despite the
fact that they probably have some immediate practical relevance
to some of my work).

Thanks,

--
Raul
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