In the correlation coefficient, what is the difference between r^2 and r? I know the correlation coefficient is r, and to find r you take the square root of r^2, but why do they show r^2?

Question

In the correlation coefficient, what is the difference between r^2 and r?  I know the correlation coefficient is r, and to find r you take the square root of r^2, but why do they show r^2?

PsyDAG · Answer

https://www.google.com/search?client=safari&rls=en&q=r+vs+r%5E2+correlation+coeficient&ie=UTF-8&oe=UTF-8