The Pearson correlation coefficient is a statistic that measures:
A) the causal association between scale variables.
B) an association between scale, ordinal, and nominal variables.
C) a linear relation between two scale variables.
D) relatedness in terms of variability between variables.

Question

Quizplus · Accepted Answer

The Pearson correlation coefficient measures the linear relationship between two scale (or continuous) variables. It indicates the strength and direction of the linear association between the two variables, with values ranging from -1 to 1. Therefore, choice C is the correct answer. The other answer choices (A, B, and D) are either too broad or inaccurate.

The Pearson Correlation Coefficient Is a Statistic That Measures