GMAT And Other Determinants Of GPA In An MBA Program

Abstract

This paper reports on the influence of waiving the GMAT requirement on academic performance as measured by grade-point-average at graduation for 833 University of Hartford MBA students who graduated between 2003 and 2009. In seeking to better understand what factors might be influencing graduation GPA, we examined a variety of traditional attributes. In addition, we examined the potential influence of GMAT Waivers on graduation GPA because there was some thought that students who waived this test might have lower graduation GPAs than those who took the examination. The results of this study indicated that the most important factor for determining MBA graduation GPA was an individual’s undergraduate GPA, with higher undergraduate GPAs being associated with higher MBA graduation GPAs. Marginally significant differences in graduation GPA were also found based on the number of credits waived at entry into the MBA program, with more credits being waived contributing to a higher graduation GPA. We also found that women graduated with higher GPAs than men. Of particular interest to us in this study, however, was whether or not our GMAT Waiver policy was influencing graduation GPAs. In this case, we found no significant difference in graduation GPA, regardless of whether or not the GMAT requirement was waived. These results were confirmed using chi-square tests and two-sample t-tests. To gain additional insights into these issues, we estimated a regression model to explain graduation GPA using several attributes as independent variables. The regression results indicate that undergraduate GPA and gender seemed to most reliably predict differences in graduation GPA.