I see. So if I wanted to test change in anxiety (AnxietyPost-AnxietyPre). Would it make sense to add an extra anxiety column and dummy-code, like this?
Thank you again and sorry for the basic questions.
-gltLabel 4 'Session_Anxiety' -gltCode 4 'Session : -1*T1 1*T2 -1*AnxietyPre 1*AnxietyPost :' \
-dataTable \
Subj Session AnxietyPre AnxietyPost InputFile \
04027 T1 45 0 /Applications/freesurfer/Study1/subs/04027_pre/aScript_results/PCC_seed.maskConnData.Z.nii.gz \
04034 T1 31 0 /Applications/freesurfer/Study1/subs/04034_pre/aScript_results/PCC_seed.maskConnData.Z.nii.gz \
04035 T1 40 0 /Applications/freesurfer/Study1/subs/04035_pre/aScript_results/PCC_seed.maskConnData.Z.nii.gz \
...
04020 T2 0 18 /Applications/freesurfer/Study1/subs/04020_post/aScript_results/PCC_seed.maskConnData.Z.nii.gz' \
04027 T2 0 15 /Applications/freesurfer/Study1/subs/04027_post/aScript_results/PCC_seed.maskConnData.Z.nii.gz' \
04034 T2 0 33 /Applications/freesurfer/Study1/subs/04034_post/aScript_results/PCC_seed.maskConnData.Z.nii.gz' \
04035 T2 0 11 /Applications/freesurfer/Study1/subs/04035_post/aScript_results/PCC_seed.maskConnData.Z.nii.gz' \
...
