The authors investigated the results of the Educational Testing Service Major Field Test (ETS-MFT) administered to business majors at a U.S. state university. Longitudinal trends and cross-sectional differences are documented, including significant performance differences among students of different majors. Findings suggest that a cohort affect may influence testing outcomes. The authors discuss with possible explanations for performance differences and explore means of remediation. (Contains 1 figure and 2 tables.)