Hello everyone,
With the help of this site, I managed to do a 2x2 repeated-measures ANOVA using the flexible factorial SPM option. So thank you very much!
Now I need help with one more thing: I am trying to add a covariate to the design. The covariate is each participant's score to a separate task.
Here's what the design looks like so far:
I use 3 factors:
Factor 1: Subject
Factor 2: Condition A (with 2 levels)
Factor 3: Condition B (with 2 levels).
Then at the Batch Editor I do the following:
-> Covariates: new.
-> Vector: I put in a list with the scores. Since each participant has 4 scans and 2 conditions, I put each individual score 4 times (ie, say that score for participant 1 was 7 and for participant 2 it was 9, the vector will be 7 7 7 7 9 9 9 9...). Does that make sense to you? Am I on the correct path of thinking here?
Then:
-> specify covariate name.
-> Interactions (none???).
Thank you very much,
Kate
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