dear simon. thank you again.
i checked all my cells, no mistakes in there. i found the problem (but no
solution): i defined a nuisance covariate, which i forgot to mention
before. deleting the covariate let spm design the model. but how can i
intergrate a covariate? i tried interaction with factor 1 (i don't
understand why i can choose 3 factors and defined only 2) but it still not
worked.
best markus
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