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Two things: (1) If you have 2 groups and 2 within-subject factors, you can only look at within-subject factors AND this should be done with the flexible factorial. The full factorial is not correct for repeated-measures. (2) Covariates should not be added to the model as they do not change the within-subject effects. I'm not sure if they are allowed in BPM, but if they are they will likely lead to the wrong results as with SPM. Best Regards, Donald McLaren ================= D.G. McLaren, Ph.D. Research Fellow, Department of Neurology, Massachusetts General Hospital and Harvard Medical School Postdoctoral Research Fellow, GRECC, Bedford VA Website: http://www.martinos.org/~mclaren Office: (773) 406-2464 ===================== This e-mail contains CONFIDENTIAL INFORMATION which may contain PROTECTED HEALTHCARE INFORMATION and may also be LEGALLY PRIVILEGED and which is intended only for the use of the individual or entity named above. If the reader of the e-mail is not the intended recipient or the employee or agent responsible for delivering it to the intended recipient, you are hereby notified that you are in possession of confidential and privileged information. Any unauthorized use, disclosure, copying or the taking of any action in reliance on the contents of this information is strictly prohibited and may be unlawful. If you have received this e-mail unintentionally, please immediately notify the sender via telephone at (773) 406-2464 or email. On Mon, Jan 20, 2014 at 8:22 AM, PD Dr. med. Juraj Kukolja <[log in to unmask] > wrote: > Dear community, > > > > I wonder whether there is a possibility (script or trick) to perform a > full factorial analysis (with between-group and within-group factors) with > BPM. > > I would like to include VBM data as a covariate in an fMRI analysis (2 > groups, 2 within-subject factors (with 2 and 3 levels, respectively)). > > > > So far, BPM only permits between-group tests, if I am correct. > > > > Many thanks in advance! > > > > Best regards > > > > Juraj > > >