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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Postdocs and Data Scientists

Ashley received her Ph.D. in Developmental Psychology from Yale University, where she worked with Drs. Yarrow Dunham and Karen Wynn assessing social cognition in infancy and early childhood. Her work looks at the mechanisms that underlie our emerging evaluations of social life with a particular emphasis on how messages about similarity guide children’s social preferences and inform their inferences about the structure of social groups. She is excited to apply these ideas to the study of gender development among, and prejudice toward, gender non-conforming youth.

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Natalie received her B.A. in psychology from Barnard College and her Ph.D. in social psychology from Yale University. In graduate school, Natalie explored misgendering, appearance-related stereotypes, and psychological consequences of femininity threats. As a postdoctoral research associate, she is excited to continue conducting research on gender, bodies, and identity (in)validation by examining the effects of medical transition on body image and mental health in transgender adolescents. When she’s not working, Natalie enjoys solving crossword puzzles, spending time with loved ones, and crafting.

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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Graduate Students

Jessica Glazier is a 5th year graduate student in the developmental and social psychology programs at the University of Washington. She received her B.A. from Albion College and then worked as a Lab Manager at the University of Michigan before beginning at the HuDL Lab. Her research examines the gender development of gender nonconforming children as well as gender prototyping and gender categorization in both adults and children.  In her time spent outside of the lab, Jessica enjoys reading and playing the clarinet.

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Bryn Bandt-Law is a fourth year graduate student at the University of Washington. Bryn received their BA in psychology with honors from Claremont McKenna College and worked as a lab manager at Princeton University for Eldar Shafir and Alin Coman before coming to UW. Their research examines how and why we are more likely to neglect some individuals who are victimized by gender-based violence more than others at the interpersonal and institutional level. Outside of the lab, Bryn enjoys mountain biking, reading, and music. 

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 second-year graduate 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 how children’s language environments shape their understanding of social categories such as gender, ethnicity and age. In his free time, Benny is a classical clarinet player and enjoys attempting to recreate his grandmother’s legendary cuisine. 

Daniel is a second-year graduate student working with Selin Gülgöz at Fordham University and a collaborator of the HuDL Lab at Princeton. Previously a research coordinator for Kristina Olson at the University of Washington, he earned his B.A. in psychology from the University of Texas at Austin. Daniel’s research interests lie in understanding concealment and disclosure of stigmatized identities among children and adults. When not working on research, Daniel enjoys the outdoors, cooking, and making Spotify playlists.

Project Coordinator & Research Staff

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. 

Shira Kahn-Samuelson graduated from The University of Massachusetts Amherst in 2020 with B.A.s in Psychology and Child Development. She is one of the research coordinators in the Human Diversity Lab at Princeton University where she assists in data collection, oversees projects in the lab, and supervises undergraduate research assistants. In her free time, Shira enjoys going on bike rides, listening to podcasts, and reading books. 

Research Assistants

We are fortunate to have an amazing team of research assistants.

Our current Princeton University research assistants include:

Sofía Briones Ramírez is a senior in the Psychology Department and Latin American Studies certificate program. As an undergraduate research assistant, they work with the research coordinators on ongoing projects in the lab and on their senior thesis project with the help of graduate student Stats Atwood. In their free time, Sofía enjoys running around the rugby pitch with Princeton Women’s Rugby, cooking up silly meals in Brown Co-op, and taking as many naps as possible.

Julia is a fourth year undergraduate student at Princeton University. She is interested in understanding where gender stereotypes come from and how they are transmitted from one generation to the next.  In the HuDL lab, she works closely with Ashley Jordan on research surrounding gender essentialism and its influence on gender-based prejudice in the context of gender nonconforming youth. Julia is also a member of the Princeton Women’s Volleyball team.

Sydney is a senior in the English department who is also studying linguistics and computer science. In the lab, she helps with running experiments and checking data.

Titi Sodimu is a junior majoring in Visual Arts and working towards certificates in neuroscience and gender and sexuality studies. They enjoy singing in the Princeton University Chapel choir and being a WPRB DJ. In their spare time, Titi enjoys going on hikes, reading and baking. They are especially interested in language acquisition and development, and the intersections of race and gender development. 

Chaewon Han is a sophomore at Princeton University with an intended major in economics. As a research assistant, Chaewon is interested in exploring the intersection of psychology and gender/sexual identity. In her free time, she enjoys practicing as a member of KoKoPops (a dance company on campus) or reading.


Here is a list of our former grad students and postdocs and where they are now:

  • Alex Shaw (former grad student, now faculty at University of Chicago)
  • Alia Martin (former grad student, now faculty at Victoria University of Wellington)
  • Kristi Leimgruber (former grad student, now a visiting faculty at Franklin & Marshall)
  • Vivian Li (former grad student, now at Procter & Gamble)
  • Anna Newheiser Reiman (former postdoc, now faculty at SUNY-Albany)
  • Sara Haga (former grad student/postdoc, now post doc at University of Lisbon)
  • Allison Skinner (former post doc, now on faculty at University of Georgia )
  • James Rae (former grad student, now researcher at Zillow)
  • Arianne Eason (former grad student,  now faculty at UC-Berkeley)
  • Anne A. Fast (former grad student, now faculty at Western Washington University)
  • Elizabeth Enright(former grad student, now faculty at St. Mary's College of Maryland)
  • Selin Gülgöz (former post doc, now on faculty at the Fordham University)
  • Eric Gomez (former graduate student, UX Researcher at Google)
  • Jen Rubin (former post doc, now Researcher at Foundry 10)
  • Tabea Hässler (former visiting graduate student, now senior researcher at the University of Zurich)
  • Léïla Eisner (former visiting graduate student)
  • Dominic Gibson (former post doc, now Researcher at Foundry 10)
  • Adriana Germano (former grad student, now post doc at Columbia Business School)
  • Lily Durwood (former grad student, now on internship at Weill Cornell School of Medicine)

Former Research Assistants in the Field

These students include:

  • Adam Hoffman (current faculty at Cornell University)
  • Hannah Schacter (current faculty at Wayne State University)
  • Allycen Kurup (Purdue, Psychological Sciences)
  • Arianne Eason (assistant professor at UC-Berkeley)
  • Zoe Liberman (current faculty at University of California – Santa Barbara, Developmental Psychology)
  • Christian Hoyos (University of Chicago, Cognitive Psychology)
  • Kelly Reina (Arizona State University, Evolutionary Anthropology)
  • Brian Spitzer (NYU, Developmental Psychology)
  • Chonghui “Gabriella” Ji (University of Montana, Clinical Psychology)
  • Zuoyu “Zoey” Lu (Pennsylvania State University, Human Development and Family Studies)
  • Vanessa Calderon  (USC, Clinical Science)
  • Deja Edwards (Emory University, Masters in public health)
  • Kayla Lewis (Marquette University, PhD student)
  • Nandana Rao (University of Washington, Institute for Public Health Genetics, PhD student)
  • Daniel Alonso (Fordham University, PhD student)

[*if you are a lab alumnus and should be listed here, email Kristina*]