Many colleges of business use a required level of performance in freshmen and sophomore courses as a screening mechanism to control access to their majors and/or junior and senior level courses.  Because many colleges use this approach to control access, it should be of interest to policy makers to know whether or not their screening mechanism is valid through the senior year. This paper uses an Ordered Probit Model to investigate how well performance in freshman and sophomore courses predicts performance in a senior level Operations Management course.