Research on teaching and learning in condensed-course formats is varied and difficult to generalize. We analyze this research and identify factors that may account for the varied findings. Additionally, we present a mixed methodology study of 20 matched-pair courses (i.e., full and condensed formats) from 11 disciplines which examines student learning and student and faculty perception data. We find that faculty and students perceive condensed courses as more effective, but that student learning varies depending upon the measures used to assess it. We conclude by considering the implications of our study for teaching and assessment practices.