I am working on a data file looking for the correlation between two variables (numerical). My population is divided into two. There is correlation between the two variables of the two groups (group 1 has a correlation of -0.256 with p<0.000 and group 2 of -0.287 with p<0.000).<br>I want to compare the degree of correlation between the two groups, ie is the correlation between the group 1 more powerful than group 2 or is it the same?
Please tell me which test to use.
I would appreciate your help and I would like to thank you in advance.