Except for the values r = -1, 0 and 1, we cannot be specific in our interpretation of the coefficient of correlation r. However, when we square it, we produce a more meaningful statistic.

Question

Quizplus · Accepted Answer

Squaring the coefficient of correlation r gives us the coefficient of determination (r^2), which represents the proportion of variance in one variable that is accounted for by the variance in the other variable. Therefore, r^2 gives us a more meaningful statistic than r alone.

Except for the Values R = -1, 0 and 1