Members of our lab work on projects that represent a range of theoretical perspectives and behavioral outcomes of interest, and that take place in different areas of the world. We are united by an interest in applied behavioral science (Kahneman, 2012), in experimental methods, and in pragmatic theories that generate predictions about behavior in real world settings. Some of the topics that lab members are currently working on include the reduction of intimate partner violence, the consequences of participation in violence, the effects of university culture on students, and peacebuilding in conflict and post conflict settings. We meet weekly to workshop one project at a time. 


Robin Gomila

I am a fifth year Ph.D. candidate in social psychology, working with Betsy Levy Paluck. In one line of research, I examine how people decide to engage in behaviors that are in direct opposition to social norms. Specifically, I use qualitative and quantitative methods, in the lab and the field, to study the causes and consequences of norm deviance. Another line of research focuses on how to identify the most influential people in social networks. I also recently started to study how people’s biased first impressions of one another may trigger cascades of negative behaviors and reinforce inequality. Finally, I am also very interested in causal inference and research methods –statistical and experimental.

Prior to starting my PhD at Princeton, I received my B.A. in Psychology from Paris Descartes University (France).


Chelsey Simone Clark

I am a second-year Ph.D. student in the psychology and social policy joint degree program, and I work primarily with Betsy Levy Paluck. My graduate research centers on interventions to reduce prejudice in the field. My specific interests include the ways in which institutional signals affect perceptions of social norms, marginalized people’s sense of identity and belonging, and citizenship and national identity. 

I received my B.S. in psychology from Yale University in 2017 where my research focused on canine and monkey cognition. I am an alumna of the Yale Emerging Scholars Initiative -Post-Baccalaureate Research Education Program and a recipient of the NSF Graduate Research Fellowship. 

Roni Porat

I am a post doctoral research associate at the Woodrow Wilson School and the Psychology Department. In the Fall of 2020 I will be joining the Hebrew University as an assistant professor. In one line of research I study the role of emotion in intergroup relations. Initially I focused on how people want to feel in intergroup conflict. Currently, together with Prof. Paluck, I am exploring the intersection of emotion and gender. In a second line of research, I am interested in exploring how social science may offer potential tools for decreasing violence. In this line of research I am currently conducting two meta analyses that examine interventions that are aimed to decrease sexual violence and prejudice.



Joel E. Martinez

I am a graduate student in both the psychology department and the Woodrow Wilson school for social policy. I use computational approaches to study social cognition and perception at the junction of many domains: immigration, race, sexuality, and class. More specifically, my research quantifies 1) how individuals and collectives represent others (e.g., undocumented immigrants or promiscuous H.I.V. pre-exposure prophylaxis users) in mind as an index for prejudice and 2) shared or idiosyncratic understandings of discourse used in social conflict (e.g., “racism”, “dangerous") as a computational framework for social change.

Jordan Starck

I am a graduate student pursuing a joint degree in psychology & social policy. I study race, bias, and interventions for social change, often within the context of education.  One current line of research investigates how framing social policies and issues in various ways affects social perceptions and intergroup attitudes. Another line analyzes how teachers’ biases affect student outcomes.  I received my BS in Psychology and Professional Educator’s License from Davidson College, after which I spent four years as a K-12 educator where I taught a variety of social studies courses and consulted with educators, officers, and non-profits on topics related to bias.


Nechumi Yaffe

I am a post-doctoral research associate at the Paluck lab in the Psychology Department and the Daniel Kahneman Center of Behavioral Science and Public Policy at Princeton University. Starting in Spring 2020, I will be an Assistant Professor at Tel Aviv University. My research focuses on how ultra-orthodox (Haredi) community and looks at how identity, social norms, and authority play a role in creating and preserving poverty. Before entering into the academia I was an advisor for the Haredi educational system and wrote the new curriculum in history and the history textbook used by all Israeli Haredi high schools. I received my Ph.D. from the Hebrew University in Israel, and my dissertation focused on poverty and identity processes

John Henry Pezzuto

I am Betsy Levy Paluck’s lab manager. My previous research has looked into the relationship between temporal discounting and behavior, charitable exchange, peer effects in Chicago schools, and social cognition — which I’ve conducted in both lab and field settings. Prior to joining the Paluck lab, I worked in New York as a data curator for a multi-university FDA grant. I received my M.A. from the University of Chicago where I studied behavioral science and received certification in computational social science. I received my B.S. in psychology from the University of Illinois at Urbana-Champaign.


Mariella Rubenson

I am an eleventh grade student interested in market research and social psychology. I am especially interested in how kids think about their own behavior and how this affects the way they think about how people react to them. I am also interested in altruism and giving among kids and in ways of measuring this. For the last three years, I have conducted surveys and experiments on how people celebrate Christmas. For my last study Betsy Levy Paluck gave me ideas for an experiment on naughtiness (see: 

 My latest research project included a survey on people's preferences for children's literature. It was a surprise gift for Betsy. You can read about it here. When I am not at school, I study ballet. I also enjoy reading, skiing, traveling with my family, and playing piano.


Lab Alumns!

Sherry Wu

Yang-Yang Zhou

Nathan Matias

Ana Gantman

Jason Chin

Rebecca Littman

Aneesh Rai

Margaret Tankard

Jose Drost-Lopez

Ruth Ditlmann

Hana Shepherd

Courtney Bearns Tablante

Iniko Ntosake

Catherine Idylle

Aly Neel

Kulani Dias 

Heather Kugelmass

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