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Hello, I'm trying to set up a one-way within-subj design using SPM5. I have 4 levels and 7 subjects. According to a previous post, one can implement this design via the 'full factorial' or 'flexible factorial' option, based on how the data is entered/selected. I'm trying to do this through the 'full factorial' option, but not sure if I'm doing it correctly. The degrees of freedom reported on the design matrix page says 24, but shouldn't it be 18 for my study? As for parameters I'm choosing 'NO' for Independence, to allow for dependencies for this repeated measures design. I guess my main question is how can one setup a one-way within-subject design or a one-way between-subject design under the 'full factorial' option for SPM5? I've changed every possible parameter in this option tree, but can't get a different report for the degrees of freedom (i.e. 27 df for between-subj or 18 df for within-subj) Thank you so much in advance, Peter