Dear MRtrix Users,
I have completed FBA and I need some suggestions and clarifications. I have the design.txt as follows:
group1 group2 age sex. I used two different contrast [1 -1 0 0] for group1>group2 for group difference by controlling age and sex; [1 -1 1 1] for group1>group2 for group difference by including age and sex effect. Are they right? If they are, what exactly the difference between the two conditions?
Also, I have reading and intelligence scores and I added them into my design matrix. My new design matrix is group1 group2 group1ReadingScore group2ReadingScore age sex. To have differences between two groups in their associations I used two different contrast [0 0 1 -1 1 1] and [0 0 1 -1 0 0]. Are they fine? Again, if both are fine, what would be the best interpretation?