Harvard Medical School Comprehensive Examination (OSCE) assesses the ability of final year students to integrate and apply their knowledge, clinical skills, and professional attitudes in a standardized format. As a summative evaluation, successful completion of the examination is a prerequisite for graduation from HMS. As a formative experience, the examination provides objective data on which students can reflect and improve their abilities in a mentored fashion, as well as data on which the HMS curriculum and its processes can be continually evaluated and improved