Hello all
In my vbm analysis, we have more than 400 subjects and each of them has a behavioral score.
For some of the subjects their behavioral scores are identical.
I used the behavioral scores as the reggressor in the Glm but found no results after fwe correction in the randomize.
But when I averaged the brain images for subjects with identical behavioral score and used the unique behavioral scores as reggressor, I found brain areas after the fwe correction.
But I don't know if this analysis is OK. Or should I put the subjects into 3 groups as low medium and higher behavioral performance and do a anova?
Thanks for reading this.
Best,
Xin Niu
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