In this study, the authors found that the most important factor that affected student performance was their competence in speaking English. The sample was a group of 864 business and economics students in United Arab Emirates. The authors used regression analysis for the study. The results of the study showed that students who participated in class discussions and who were on leave from their jobs outperformed other students. Missing many lectures and living in a crowded household negatively affected student performance. The results of the study also showed that nonnational students outperformed national students, and female students outperformed their male counterparts. (Contains 2 tables.)