Hello,
I know this question has been asked several times on the forum and yet I am asking the same question again. Kindly pardon my ignorance. I am think I have understood the steps but I am just trying to make sure that I do my analysis correctly.
I have run all the steps of tbss and I am about to design my design matrix.
The question that I am trying to ask is as follows, Does FA values correlate with age ?
I just have one group and I will feed in the demeaned age values.
So I would be designing a matrix using GLM as follows
Group EV1
1 age of subject 1
1 age of subject 2
1 age of subject 3
1 age of subject 4
1 age of subject 5 and so on ...
Does this look correct ? or should I include one more EV which would correspond to the FA images of each of the subjects ?
Kindly advise
Thank you in advance
Sincerely,
Ankit Master
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