We are running an F test in randomize to identify structural differences between 3 groups in our VBM analysis.
randomise -i GM_mod_merg_s2 -o GM_mod_merg_s2_output -d design.mat -t design.con -f design.fts -m GM_mask -n 10000 -T
We’re not finding any areas of significance from the F test (using this command). However we are seeing differences between the groups in pairwise comparisons, which makes us second guess whether the above syntax for the F test is correct.
Any advice/input would be greatly appreciated!
Thanks in advance,