I have two questions with respect to comparing two correlation coefficients.


Cohen (1977) suggested to use Cohen's *q* to compare two Pearson's correlation coefficients by first transforming *r* with Fisher's *z<sub>r</sub>* transformation into *z* values. 

Cohen's *q* = *z<sub>1</sub>* - *z<sub>2</sub>*. 

**Question 1:**
I would like to calculate the 95% CI for Cohen's *q* but am unsure of how to do this. Could anyone help me with this please?

**Question 2:**
Is it okay to use the same procedure with Spearman's correlation coefficients (i.e. Fisher's *z<sub>r</sub>* transformation and then calculate the difference)?