Which of the Following Purposes for Proposed Research Studies Would

Which of the following purposes for proposed research studies would be least acceptable to the scientific researcher?

A) To show that the educational philosophy of John Dewey has had an adverse effect on American education
B) To show changes in attitudes and values associated with college attendance
C) To predict performance in successive terms in college from tests and grades
D) To study the relationship between college students' ratings of professors and the grades they received from the professors
E) To determine if grade inflation has occurred at State University over the past five years