Previous research on capstones in sociology and psychology has suggested that there is a typical capstone experience required by three quarters of all four-year colleges and universities in the United States. This article reports results from a national survey that confirm that sociology and psychology capstone courses conform generally to a common format. The findings further indicate that factors related to student limits and time limits predominate with respect to those variables that produce less successful course outcomes. A review of the social science capstone literature and the pedagogical best practices literature suggests that student limitations and time limitations can be attenuated by curricular, structural, and resource-allocation changes. (Contains 7 notes and 5 tables.)