Does anyone have any SPSS syntax to decompose a 4-way interaction from a mixed ANOVA with 2 repeated factors?
Right now, we have a significant 4-way interaction that needs decomposition. Rather than conducting a series of ever-shrinking ANOVAs to decompose it, I was wondering if anyone had a something available to test that, e.g., MMATRIX, LMATRIX.
Don't worry, we're sufficiently powered.