This work began with the idea of a conference to facilitate the dissemination and exchange of hypothesis-based research on interventions and initiatives that broaden participation in science and engineering research careers. The conference is designed to create a dialogue among behavioral/social science and education researchers, evaluators, and faculty in STEM (science, technology, engineering, and mathematics) fields who participate in intervention programs. Graduate students in these fields are strongly encouraged to attend. Workshops, sessions, and posters will communicate effective strategies from successful STEM intervention programs, present results from empirical research studies, and synthesize the translation of research findings into practice on STEM learning, undergraduate research, graduate education, and student retention. This has now expanded to other activities and resources that anchor communities of scholarship, assessment, and practice. Our broader mission is to positively impact the outcomes of efforts aimed at broadening participation in research and research careers through the expansion and dissemination of the relevant body of knowledge and facilitate its implementation in practice, policy development, training, and professional development.