Hi all,
I was wondering whether there are any packages that provide for the
Greenhouse-Geisser correction, an adjustment used in univariate repeated
measures when the sphericity assumption is violated (both numerator and
denominator degrees of freedom are multiplied by GG-epsilon, and the
significance of the F ratio is evaluated with the new degrees of freedom)? I
have seen a few emails with the same question, to which nobody replied, but
am hoping that maybe in the mean time somebody has tried to work this out.
Thanks much,
Heleen
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