The Pearson correlation may be used to determine the _____.
A)relationship between two variables
B)variability between x and y scores
C)curvilinear relationship between x and y
D)predictive error between two scores

Question

Quizplus · Accepted Answer

The Pearson correlation coefficient is used to determine the relationship between two variables. It measures the strength and direction of the linear relationship between two continuous variables. Choice B is incorrect because variability is measured by the variance or standard deviation. Choice C is incorrect because the Pearson correlation coefficient only determines linear relationships, not curvilinear ones. Choice D is incorrect because the Pearson correlation coefficient does not measure predictive error; it measures how closely two variables are related.

The Pearson Correlation May Be Used to Determine the _____