We are extremely grateful to the undergraduate and graduate students who took time to share their thoughts about their research experiences with us as well as the administration of the chemistry, physics, biology, biomedical engineering, mechanical engineering, and earth and planetary sciences departments, which helped us to distribute the survey. We would like to thank the Center for Teaching and Learning at Washington University in St. Louis for their support of this study. J.E.S. is supported by the Spencer T. and Ann W. Olin Fellowship for Women in Graduate Study.