The use of student evaluations of courses and professors has been examined by Professor Kelley in an effort to learn more about the factors that appear to be associated with “good” or “poor” ratings. Using student evaluations of the Principles of Economics course at the University of Wisconsin in Madison, Kelly investigated two dependent variables: measures of course evaluation and measures of professor evaluation. Eleven independent variables were included in the analysis, and two different regression models were used. The results are tentative, of course, but the study reveals some interesting findings on the impact of teaching assistants, the student's expectation of his course grade, and the professor's propensity to be generous or niggardly in awarding high grades.