In order for accurate measures of the linear relationship between two variables to be achieved, what type of data are required if using Pearson's correlation coefficient?
A) Interval
B) Ratio
C) Ordinal
D) Categorical

Question

Quizplus · Accepted Answer

Pearson's correlation coefficient is designed to measure the linear relationship between two continuous variables. Interval and ratio data are both continuous and therefore appropriate for calculating Pearson's correlation coefficient. Ordinal and categorical data are not continuous and do not have a linear relationship, making them unsuitable for Pearson's correlation coefficient.

In Order for Accurate Measures of the Linear Relationship Between