I'm trying to do a simple correlation analysis with 2 PET scans
per subject, scan 1 baseline and scan2 on drug correlated with
performance in memory scores, one for each condition. I used
the PET/SPECT models, Multi-subj: covariates only and entered 1
covariate of interest. Is this the correct model to use and how
to I define the contrasts? Assuming I entered the scans 1 then 2 how
would I define contrasts to see the positive and negative correlations??
Thanks,
Dave
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