What Is Indicated by a Pearson Correlation of R =

Multiple Choice

What is indicated by a Pearson correlation of r = +1.00 between X and Y?

A) Each time X increases, there is a perfectly predictable increase in Y
B) Every change in X causes a change in Y
C) Every increase in X causes an increase in Y
D) All of the other 3 choices occur with a correlation of +1.00.