That’s really clever to use the t-stat Gang! Makes life considerably easier.

In my (now outdated) way of doing things, z-scoring the data would convert the b-value of the regression to a standardized regression coefficient (beta), which in simple regression is a correlation. So if you centered both of your datasets (MRI and covariates) the correlation value would appear in the “mean” column for the covariate. Whereas if you just convert the t-stat of the covariate from t → R, you get the same value.

Dear Gang,
I am trying to do behavioural data correlation with my MRI data, would you please let me know the best way to do this. I tried 3dttest++ as you mentioned here and I get Zscr , can I also run -Clustsim with that? the link you sent before is not working and that would be great if you can help with an example.
BR

I am trying to do behavioural data correlation with my MRI data, would you please let me know the best way to do this.
I tried 3dttest++ as you mentioned here and I get Zscr , can I also run -Clustsim with that?

Yes, it’s fine to use option -Custsim.

the link you sent before is not working and that would be great if you can help with an example.

The link was about conversion from regression coefficient to Pearson correlation coefficient.

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National Institute of Mental Health (NIMH) is part of the National Institutes of
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