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Hi SPMers and experts in DCM, I have a question about DCM, BMA. I've recently performed a random-effects analysis with 8 DCM models in two groups, healthy controls, respectively a clinical group. Two models showed differences between the two groups.The "model level results" comprise the posterior model probabilities (*.g_post*). Is it OK to perform some statistical tests (i.e. two-sample t-test) on these posterior probabilities? Would it be necessary to further transform these values? Thanks in advance for your advice, Eugenia *Dr. Eugenia Radulescu, MD, PhD* Postdoctoral Research Fellow Sackler Centre for Consciousness Science, Brighton and Sussex Medical School, Brighton, UK