i. If there is absolutely no relationship between two variables, what will Pearson's r equal? ii. If the value of r is -0.96, what does this indicate about the dependent variable as the independent variable increases?
iii. What is the value of the correlation coefficient if there is perfect correlation?
A) one (1); decreases; zero (0).
B) one (1); increases; zero (0).
C) zero (0); decreases; +/-1.0.
D) zero (0); increases; +/-1.0.
E) +/-1.0; nothing; +/-1.0.

Question

Quizplus · Accepted Answer

If there is absolutely no relationship between two variables, Pearson's r will equal zero (0). A value of -0.96 for r indicates a strong negative correlation between the variables, meaning that as the independent variable increases, the dependent variable decreases. The value of the correlation coefficient if there is perfect correlation is +/-1.0, meaning that the variables are perfectly related in a positive or negative direction.

I If There Is Absolutely No Relationship Between Two Variables