Hi Freesurfer Team,
I made a qdec table with columns fsid, disease status (control and diseased), age, df, db, dtotal (which are three continuous psychological test scores). I performed one analysis in qdec with disease status as the discrete factor and each of the three test scores as the continuous factor with no nuisance factor chosen, for a total of three analyses. All three analyses ran successfully but when I choose "Does the average thickness differ between Control and Diseased?", which should ignore the test scores (right?), and applied an FDR = 0.05, I get wildly different results among the three analyses even though I believe I should get the same results since it is the same pool of subjects in all three analyses. Did I do something wrong?
Thank you, Lily