Re: Design analysis help

Posted by Maguin, Eugene on Apr 10, 2007; 8:47pm
URL: http://spssx-discussion.165.s1.nabble.com/Design-analysis-help-tp1074985p1074986.html

Fred,

I would conceive of this as a repeated measures anova with cup as the within
factor (repeated measure) and brand/type as the between factor. Repeated
measures anova has stringent assumptions regarding the within-group
variance-covariance matrix (vcm) that can be checked. This would be a good
exercise for your class to work through the assumptions. You also could
analyze this as a multivariate anova (i.e., manova) but while manova allows
broader assumptions about the vcm, the price of those broader assumptions is
reduced power. Again, the class could work through this analysis as well.

Gene Maguin