With simple regression, if we want to know the strength of the relationship, the best statistic to look at is:
A) the slope
B) the correlation coefficient
C) r-squared
D) the constant

Question

Quizplus · Accepted Answer

The best statistic to look at to determine the strength of the relationship with simple regression is the correlation coefficient (choice B). The correlation coefficient measures the strength and direction of the linear relationship between two variables. The slope (choice A) only tells us the direction of the relationship, while the constant (choice D) is simply a parameter in the regression equation. R-squared (choice C) can be helpful in determining the proportion of variance in the dependent variable that can be explained by the independent variable, but it does not provide information on the strength of the relationship.

With Simple Regression, If We Want to Know the Strength