The Pearson's product-moment correlation describes the relationship between variables by
A) summing the variable and dividing by N.
B) summing the deviation scores squared and dividing by N.
C) summing the product of z-scores and dividing by N.
D) None of these are true.

Question

Quizplus · Accepted Answer

The Pearson's product-moment correlation describes the relationship between variables by summing the product of the z-scores and dividing by N. It measures the linear relationship between two continuous variables, with coefficients ranging from -1 to 1, where -1 indicates a perfectly negative correlation, 0 indicates no correlation, and 1 indicates a perfectly positive correlation. Option A is incorrect because it describes the mean, not the correlation. Option B calculates the variance, not the correlation. Option D is incorrect because the statement is not true.

The Pearson's Product-Moment Correlation Describes the Relationship Between Variables by