Many years ago I read a post on the main AFNI website where it said to convert R values, use 3dcalc with this equation as the fisher transform: sqrt(180)*log((1+a)/(1-a))/2.
Just now I was looking an article on quick correlation analysis and it didn't have the sqrt(180) in front. Have I been doing things wrong this whole time? I've never questioned the sqrt(180) before because the results matched reasonably well with some of the other software I was using.
Thanks.