Re: MANOVA design

monopsony wrote:
I have a 2x2 design that was replicated for two different products, to
see if the results would generalise. Is it appropriate to analyse it as
a 2x2x2 design incorporating the additional two product groups, and run
one big MANOVA for both product groups, instead of doing two separate
MANOVAs?


MANOVA = multivariate analysis of variance. Multivariate means there are 2 or more dependent (or outcome) variables. From your description, it sounds like you have only one outcome variable. Therefore, I think you mean ANOVA, not MANOVA.

From what you've said, and assuming the outcome variable is the same for both products, a 2x2x2 ANOVA sounds preferable to two 2x2 ANOVAs.

--
Bruce Weaver
bweaver@xxxxxxxxxxxx
www.angelfire.com/wv/bwhomedir
.