Hi,
According to your opinion, I did not use gender as a covariate any more.
3dttest++ script is as follow.
3dttest++ -setA subjects_image_file -covariates covariate_file -prefix test_result
The covariate file like this:
subjects age blood-test
sub001 56 120
sub002 67 135
....
The results include 6 sub-bricks, setA mean, setA Tstat, setA age-mean, setA age-Tstat, setA blood-test-mean, setA blood-test-Tstat. How to explain the result based on what I want? The sub-brick of setA blood-test-mean should be the slope, right?
I assume that every subject is a time point of whole group when I use 3dDeconvolve to remove age effect, then I use 3dTcorr1D to get the correlation coefficient between residual and blood-test result. Is that okay?
Thanks,
Xiaozhen
