Dear SPM experts,
I have am attempting to compute a flexible factorial 5 (conditions) x 2 (groups) x (subjects) design as I have previously done with other, similar data.
In the flexible factorial setup I define three main effects: condition, group, subject. When I run the batch the design matrix looks fine at first in the SPM "preview" (see design 1 attached) but when I review the actual matrix later it looks really odd (see design 2 attached) and contrast definition leads to SPM/Matlab to be in (what seems to be) some kind of endless loop, no error is displayed, however.
The same happens with variations of this model whenever I add the subject factor to account for between subject variance in this within subject design.
Could anyone give any advice on what could be causing these errors?
Thank you so much in advance.
Susanne
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