On Wed, November 9, 2005 14:38, Peter Dalgaard wrote:
Prof Brian Ripley [EMAIL PROTECTED] writes:
A multistratum aov() fit is just a list of aov() fits, so you can apply
functions such as Anova to the individual strata.
However, why do you want types II and III sums of squares? It is usual
to do this type of analysis only with balanced designs. In the cases I
can envisage that these make any sense, they are the same as type I
(and in cases with only one treatment effect, they always are).
I was about to make a similar comment. A possible exception is ANCOVA
where you likely want to test both the within-stratum effect of a
covariate and the effect of design factors adjusted for the covariate.
May I offer a more mundane reason for asking for Type II and PRIMARILY
Type III SS?
The editor of that particular journal who is hooked on a specific type of
software and knows only about what he/she gets from the software?
Sincerely,
Ioannis
--
Ioannis C. Dimakos
University of Patras
Department of Elementary Education
Patras, GR-26500 GREECE
http://www.elemedu.upatras.gr/dimakos/
http://yannishome.port5.com/
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