A correlation coefficient is a numerical measure of the __________________.
A) unintended changes in participants' behavior due to cues from the experimenter
B) relationship between two variables
C) behaviors of participants of different ages compared at a given time
D) behaviors of participants followed and periodically assessed over time

Question

Quizplus · Accepted Answer

A correlation coefficient is a statistical measure that indicates the strength and direction of the linear relationship between two variables. It is calculated based on the covariance between the variables divided by the product of their standard deviations. The resulting value ranges from -1 to 1, where values closer to -1 indicate a strong negative correlation, values closer to 1 indicate a strong positive correlation, and values close to 0 indicate no correlation between the variables. Therefore, the correct answer is B, which states that a correlation coefficient is a numerical measure of the relationship between two variables.

A Correlation Coefficient Is a Numerical Measure of the __________________