This book is the first to consider the relationships between the Open Science and DEI (social responsiveness) movements in psychology. These two movements sometimes work smoothly together, but are also sometimes in tension. They can differ in their understanding of what science is and how psychology should behave as a science. This volume aims to shed light on the trade-offs inherent in trying to search for truth while promoting social justice. It covers the history and philosophy of these two movements as background for an exploration of the tensions between them. This volume moves beyond the conflict, acknowledging the conflicts but also showing the way toward a unified field of psychology. It will appeal to researchers and students, as well as those who train them. Exploring the relationships between these two movements will be enlightening to scholars as well as practitioners.