Tianna Barnes

Bio

Dr. Tianna Barnes is an organizational psychologist whose research examines how individuals understand their multiple identities—both role-based and group-based—and how these perceptions shape workplace behavior across different career stages. As a Provost’s Postdoctoral Fellow in the Department of Management at Wharton, she worked under the mentorship of Drs. Andrew Carton and Stephanie Creary to explore how a social moral identity extends prosocial behavior, even when personal moral identity wanes.

Her dissertation, When Moral Identity Lapses, illuminated how social components of moral identity can sustain ethical behavior in organizational contexts. Dr. Barnes earned her Ph.D. from the University of Minnesota in 2020 and holds dual B.A.s in Psychology and Women & Gender Studies from UNC–Chapel Hill.

In 2023, she joined the faculty at Dartmouth’s Tuck School of Business as Assistant Professor of Organizational Behavior. Her current research continues to investigate the micro-organizational experiences of identity, stigma, and newcomer socialization. Her work has appeared in the Annual Review of Organizational Psychology and Organizational Behavior, and she teaches core MBA courses including Managing People and Tuck Launch. Outside academia, Dr. Barnes has served on multiple professional development and mentorship initiatives, and continues to support early-career scholars through workshops, peer review, and service roles.