Hi Anderson,
Thanks so much for your help. It is most appreciated.
I did my best to try to replicate the design_ekaterina that you forwarded to me, but I still get the error that the EVs are rank deficient, and the contrasts and F-tests give nothing, even when the threshold is low, so it seems like I'm still doing something wrong. Tried several different variations out and can't get it right.
I have uploaded two design files, the first sheet is using age, sex and scanner as covariates. The second is the same but without these covariates, as I thought the problem may have been with these. Both designs give me the rank deficiency warning, and both give empty results.
https://we.tl/vDNBfiNzWL
Can you see any errors in the designs attached? They are both intended to be for 2 time points, with two groups, to look for main effects of group, main effects of time and the interaction between group and time.
Would you also happen to have another example design where I could contrast 2 time points for one group?
Thanks a lot!
Elliot.
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