Kristina Olson is a professor of psychology at Princeton University and the director of the Human Diversity Lab. She received her B.A. in Psychology and African and African-American Studies from Washington University in 2003 and her Ph.D. from Harvard University in 2008. Before joining the faculty of Princeton, she was a professor at Yale University and then the University of Washington. She studies early social cognitive development and directs the TransYouth Project. She was the recipient of the 2018 Alan T. Waterman Award from the National Science Foundation, the 2016 Janet Taylor Spence Award for Transformational Early Career Contributions from the Association for Psychological Science, was a 2018 MacArthur Fellow, and was awarded the 2015 Davida Teller Distinguished Faculty Mentor Award. Outside of the lab, Kristina enjoys making and eating delicious food and is a prolific reader.

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Rachel received her PhD in social psychology at NYU and, before that, earned her BA in psychology and gender studies from Northwestern University. In graduate school, Rachel studied the development of social categorization, with a focus on how children and adults represent gender categories. As a postdoctoral research fellow, Rachel is excited to examine the consequences of gender categorization in adolescence — and, specifically, the link between gender-linked socialization and mental health -- and adopt a more applied focus to her work. In addition to research, Rachel has a love of food, comedy, and long conversations.

Natalie received her psychology B.A. from Georgetown University and completed her cognitive and social psychology Ph.D. at Northwestern University. In graduate school, she studied mental representations of social categories and social networks, with a particular focus on how lay theories influence social cognition. As a member of the HuDL at Princeton, she’s looking forward to continuing this work, including a developmental perspective and incorporating computational techniques. Outside of work, she enjoys hiking, woodworking, and travelling.

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Chelsey is a Ph.D. student at Princeton University in social psychology and the joint degree program in social policy. Her research interests are in prejudice reduction, intergroup contact, reentry and recidivism, institutional signals of social norms, and field experimentation. Chelsey earned her B.S. in Psychology from Yale University in 2017, and she is a recipient of the National Science Foundation Graduate Research Fellowship (NSF-GRFP). In her free time, Chelsey likes playing tennis, watching horror films, and spending time with friends.

Born in China and raised in eastern Massachusetts, Stats previously studied psychology and violin at Oberlin College & Conservatory and the University of Washington, and has conducted research at Oberlin, Stanford, Harvard, and UW. At Princeton, they are a graduate student in psychology and social policy exploring the development, perceptions, and implications of gender diversity. Outside the lab, you might find them playing violin, exploring nature, or snacking voraciously.

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Benny is a student working with Kristina Olson and Casey Lew-Williams at Princeton University. He previously served as a lab manager for Dr. Michael Frank in the Stanford Language and Cognition Lab. Benny is interested in children's social categories: how they vary, how they're learned, and how we should measure them. In his free time, Benny is a classical clarinet player and enjoys attempting to recreate his grandmother’s legendary cuisine.

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Aditi is a graduate student in the Human Diversity Lab. They earned their B.S. in Psychology at Yale in 2020, and previously worked as a lab manager for Dr. Liane Young at the Boston College Morality Lab. They are interested in the sociocultural factors that influence the development and expression of trans and non-binary people’s gender identities. In their free time, Aditi enjoys rock climbing, hiking, and watching campy TV shows.

Rachel Horton graduated from the University of Washington where she earned her B.S. in psychology. As a research coordinator Rachel assists in helping collect data and overseeing the projects going on in lab. In her free time, Rachel likes spending time with her family and going on camping trips.

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Grey graduated from Princeton University where they received their B.S. in psychology and a minor in creative writing. As a lab manager they help with participant recruitment, data collection, lab organization, and the management of undergraduate research assistants as well as other lab tasks. In their free time Grey enjoys live music, writing, hiking with friends, and cooking. 

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Zoë is a junior at Princeton University pursuing an intended concentration in psychology. She is an Outdoor Action leader and volunteer at Contact Princeton. She enjoys going for hikes, doing theater, and knitting. 

Haley is a junior in the Psychology Department, planning on getting a certificate in Gender & Sexuality Studies. She is interested in the roles that gender and sexuality play in the ways we perceive and interact with the world. Additionally, she is interested in evaluating the gender dynamics within the LGBT community and the way queer identities intersect with feminism. She is a member of the Princeton Pride Alliance, the Princeton Psychology Society, and the Scholars Institute Fellows Program. In her free time, she enjoys reading, watching cheesy rom-coms, and knitting. 

Sara is a junior concentrating in psychology on the pre-medical track. Her research interests relate to how state legislation and healthcare access affect the mental health of transgender youth. On campus, Sara is a coxswain for the Princeton Women's Openweight Rowing Team, a member of the Varsity Student Athlete Advisory Committee (VSAAC), and a Barista for the Princeton Coffee Club.