Question

# Suppose that you are told by your boss to analyze the effectiveness of a tutoring center...

Suppose that you are told by your boss to analyze the effectiveness of a tutoring center on raising students’ grades in Calculus. The tutoring center runs reviews for each Calculus exam throughout the semester. For all students, you have access to SAT and ACT scores, whether or not they had high school Calculus, exams scores for each college Calculus exam, and the college Calculus course grade. Assume that each student either attended no sessions or attended all of them. You build a linear model for course grade converted to GPA.

Explain which variables you include and exclude, and why.

The variables SAT and ACT will not be included because these tests are admission tests and their scores will not be helpful in analyzing the effectiveness of the tutoring center. To analyze the effectiveness of the tutoring center we must use scores that represent the performance of students in calculus only. Therefore, we should include whether or not they had high school Calculus, exams scores for each college Calculus exam, and the college Calculus course grade for this analysis.