Hi,
I've run a study where I look at one single group, performing a task which is divided into 4 different conditions (retrieving memories from 4 time periods of the person's life) as well as a control task. I'm interested in comparing the 4 different conditions against eachother (having first contrasted them to the control task), while controlling for a behavioral output variable that was obtained within each of the 4 conditions throughout the runs.

I've tried this, using the script on your website [afni.nimh.nih.gov],
"(2) Comparing two groups with covariate effect removed". However, I'm not actually comparing two groups but rather two conditions within the same group (repeated measures?).

Any ideas of what is the right way to go here?

Thanks,
Hedvig.