This study aims to investigate if a relationship exists between first-year medical student's personality and how they perform in problem-based learning. To assess personality, the study procedure is administered through the Big Five Inventory (BFI). To assess students’ performance, we use 2 instruments of faculty evaluations at the end of a PBL course. The first instrument is a facilitator assessment developed at CICOM for formative purposes as well as part of the final course grade. The second is a standardized instrument called Tutotest, that has shown reliability and validity. IRB approval to conduct the study was granted in August. In the class of 42 first-year students at CICOM, 29 have provided informed consent to participate in this study. In this session, a preliminary summary of their personality traits will be presented in an anonymous, aggregated fashion.