I am here to ask for advice on whether 3dMVM or 3dLME is the better option for our data analysis. The data consist of 2 between subjects factors (Group category: Group 1 vs Group 2; Ratings: continuous between 0 - 100, one value per participant) and 1 within subjects factor (9 Time points estimated from the TENT function). I would like to perform an analysis to test whether the TENT shape is differs based on the participants’ Group and Rating (Time x Group x Rating interaction). As an initial approach I’ve set up this analysis in 3dMVM (code copied below), since I have 1 within subjects factor and the between subjects factors do not differ across levels of the within subjects factor. Is this the advisable route to take or is 3dLME better for this purpose?
#!/bin/sh 3dMVM -prefix ANCOVA_TENT0to9 -jobs 6 \ -bsVars group*rate \ -qVars rate \ -wsVars time \ -dataTable @ANCOVAtable.txt