A regression analysis of students' college grade point averages (GPAs) and their high school GPAs
Found R2 = 0.311. Which of these is true?
I. High school GPA accounts for 31.1% of college GPA.
II. 31.1% of college GPAs can be correctly predicted with this model.
III. 31.1% of the variance in college GPA can be accounted for by the model
A) none of these
B) I and II
C) III only
D) II only
E) I only

Question

Quizplus · Accepted Answer

R² represents the proportion of variance in the dependent variable that is predictable from the independent variable(s). Therefore, 31.1% of the variance in college GPA can be accounted for by the model.

A Regression Analysis of Students' College Grade Point Averages (GPAs)