Most undergraduate social science programs require the completion of a capstone experience before graduation. Despite the recognized potential of capstone courses to deepen learning, many students do not perform well. The present study examines several factors that may prepare students for academic success in a fairly typical capstone course for undergraduate political science majors. We hypothesize that students who earn high grades in research intensive courses will also earn high grades in the capstone course, even after controlling for other factors related to academic performance. Our results show that successfully completing research intensive training in just one course, even above and beyond the introductory methods course, improves capstone performance. We conclude with a discussion of how our findings lend further support to arguments in favor of "scaffolding" political science curricula to funnel students from less to more intensive research experiences as they move toward the completion of their degrees.