This study at George Washington University tested for the dependence of the graduate quality point index on total scores of the Admission Test for Graduate Study in Business (an aptitude test), undergraduate quality point index, and length of time since receiving the bachelor's degree. It was hypothesized that success in the Graduate Business School is independent of all three of these variables. Subjects were 104 adult part-time graduate students admitted to the Master's program administered by the College of General Studies from September 1967 to May 1968. Principal data included the above named major variables and the number of graduate semester hours completed. Despite limitations in the study, it was concluded that success in the Graduate Business School is independent of all three major variables. However, academic workload and other factors may also be influential. (Three tables, three methodological appendixes, and seven references are included.) (ly)