Dr. Ashburner and colleagues,
Sorry for the blank email everyone!
I am trying to set up a statistical design for a VBM analysis within SPM. I have 4 clinical groups, global gray matter values and I would like to use processing speed (continuous variable) as covariate/regressor. I would like to see how the groups’ gray matter relates to processing speed. How would you suggest setting up the analysis? Should I use a multiple regression or an ANOVA?
Thank you!
Audreyana Jagger, B.S.
Graduate Student
Brain and Cognitive Sciences Program
Psychology Department
Southern Illinois University-Carbondale
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