Pearson’s Product-Moment Correlation Coefficient (r)

Where:

            r = correlation between X and Y       

∑X = Sum of test X

∑Y = Sum of test Y

∑XY = Sum of the product of X and Y

N = Number of cases

∑X2 = Sum of squared X scores

∑Y2 = Sum of squared Y scores

The steps in computing Pearson Product-Moment Correlation Coefficient (r) are as follows:

1.     1. Find the sum of X and Y

2.     2.  Square all X and Y values.

3.      3. Sum X2 and Y2.

4.     4.  Multiply X and Y.

5.      5. Get the sum of the product XY.

6.      6. Apply Formula