Responses were gathered from master's candidates in initial and advanced licensure teacher preparation programs. They were asked to discuss how completing a capstone research project contributed to their effectiveness as a teacher. Advanced candidates reported themes of improving practice, evaluating new school initiatives, and increasing collaboration with colleagues. Initial licensure candidates reported themes of using research to investigate specific topics, using research as part of assessment practices, and the importance of teachers as researchers. Conclusions suggested capstone research projects and the associated research experiences add value to teacher preparation programs and improve teacher self-efficacy.