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Our Team

Jennifer Eberhardt

Jennifer Eberhardt, Ph.D., is Morris M. Doyle Centennial Professor of Public Policy, Professor of Psychology, and Faculty Co-Director of SPARQ. She studies the psychological association between race and crime and the dehumanization of Black Americans in contemporary society. Through interdisciplinary collaborations and innovative methods—from laboratory studies to novel field experiments—her work demonstrates the consequences of these racial associations in criminal justice, education, and business. Dr. Eberhardt is the author of Biased: Uncovering the Hidden Prejudice That Shapes What We See, Think, and Do, a recipient of the MacArthur “genius grant,” and a member of the National Academy of Sciences. Contact:

Hazel Rose Markus, Ph.D., is Davis-Brack Professor in the Behavioral Sciences, Professor of Psychology, and Faculty Co-Director of SPARQ. She studies how cultures, including those of nation or region of origin, gender, social class, race, ethnicity, religion, and occupation shape—and are, in turn, shaped by—people’s thoughts, feelings, motivations, and actions. She applies this cultural psychology framework to fostering diversity, equity, and inclusion in schools, workplaces, and other important contexts in people’s lives, and to catalyzing culture change. Dr. Markus is the co-author of Clash!: How to Thrive in a Multicultural World and a member of the National Academy of Sciences. Contact:

MarYam Hamedani

MarYam Hamedani, Ph.D., is Managing Director and Senior Research Scientist at SPARQ. She studies and puts into practice strategies to help people live, work, and thrive in today’s increasingly diverse and divided world. At SPARQ, she works on improving police-community relations, promoting racial literacy, educating people about social differences, and designing empowering schools and programs for underrepresented students. The former Associate Director of Stanford’s Center for Comparative Studies in Race and Ethnicity (CCSRE) and the Stanford Center for Opportunity Policy in Education (SCOPE), Dr. Hamedani is also a Stanford Ph.D. alum in psychology. Contact:

Alia Crum

Alia Crum, Ph.D., is Assistant Professor of Psychology and SPARQ’s Director of Health. She studies how changes in subjective mindsets can alter objective reality through behavioral, psychological, and physiological mechanisms. She researches how mindsets can be consciously and deliberately changed through intervention to improve organizational and individual performance, physiological and psychological well-being, and interpersonal effectiveness. Dr. Crum is also the director of the Mind & Body Lab at Stanford. Contact:

Rebecca Hetey

Rebecca Hetey, Ph.D., is Associate Director of Criminal Justice Partnerships and Research Scientist at SPARQ. She is an expert on race and the criminal justice system and focuses on strategies to improve police-community relations. At SPARQ, Dr. Hetey works closely with law enforcement across California on research and training initiatives. She received her Ph.D. in psychology at Stanford, where she was advised by SPARQ Faulty Co-Director Jennifer Eberhardt, and her B.A. from Yale University. Contact:

Caitlin Handron

Caitlin Handron, Ph.D., is a Research Scientist at SPARQ. She studies how culture, including race, gender, social class, and nationality, influences the ways in which people understand themselves in relation to others. In particular, she considers the sociocultural shaping of people’s sense of accountability - to themselves, to other people, and to the land - and how community practices and rituals can increase accountability, reduce intergroup conflict, and promote individual and collective wellbeing. At SPARQ, Dr. Handron works on projects to improve student well-being, foster belonging among intercultural communities, and promote diversity and inclusion in the finance sector. Contact:

Kristyn Jones

Kristyn Jones, Ph.D., is a Research Fellow at SPARQ. Her research interests include visual evidence and how social identities and memory errors bias perception and judgments. At SPARQ, Dr. Jones pursues criminal justice projects to create a more equitable legal system. Her primary research focus involves leveraging research and training initiatives through partnerships with law enforcement agencies to improve police-community relations. Dr. Jones was formerly a Pre-Doctoral Fellow at Vera Institute of Justice and a Researcher at the Data Collaborative for Justice. She received her Ph.D. in Psychology at John Jay College of Criminal Justice. Contact:

Amrita Maitreyi

Amrita Maitreyi is a Research Associate at SPARQ. She received a B.S. in Psychology from Tufts University, and previously worked as Lab Manager and Research Coordinator of the Mind, Culture, and Society Lab at Stanford. At SPARQ, she works on projects about fostering economic mobility and improving police-community relations. Contact:

Clarissa Gutierrez

Clarissa Gutierrez is the Lab Manager at SPARQ. She is interested in furthering community responsive research and designing culturally relevant interventions that foster psychosocial well-being, educational access, and belonging among racially minoritized students. She manages SPARQ’s team of undergraduate research assistants, and works on projects that expand youth empowerment programs, promote socioeconomic mobility in the workplace, and build intergroup harmony in diverse communities. Contact:

Tobin Belzer

Tobin Belzer, Ph.D., is a Research Affiliate at SPARQ. As an applied sociologist, her research and program evaluations have focused on young adults and teens, education and experiential education, leadership training, organizational culture, congregational studies, Jewish identity, character development, gender, inclusion, media and technology, and arts and culture. Belzer is a Contributing Fellow at the Center for Religion and Civic Culture (CRCC) at the University of Southern California. Contact:

Vinod Prabhakaran

Vinod Prabhakaran, Ph.D., is a Research Affiliate at SPARQ. His research brings together natural language processing techniques, machine learning algorithms, and social science methods to address large-scale societal issues such as racial disparities in policing, workplace incivility, gender bias and stereotypes, and abusive behavior online. Dr. Prabhakaran works as a Research Scientist at Google on issues around Ethical AI and ML Fairness. Contact:

Graduate Student and Postdoc Research Affiliates

Camilla Griffiths

Camilla Griffiths is a doctoral student in social psychology at Stanford. She studies how people learn about racial identity and racial bias through their interactions with people and institutions, with a focus on policing and education.

Kari Leibowitz

Kari Leibowitz is a doctoral student in social psychology at Stanford. She researches how to promote mindsets that increase psychosocial well-being, with a particular emphasis on understanding compassionate mindsets in various populations.

Maggie Perry

Maggie Perry is a doctoral student in social psychology at Stanford. She researches inequality, bias, and mindsets in criminal justice. Maggie was previously a research associate at SPARQ.

Ellen Reinhart

Ellen Reinhart is a doctoral student in social psychology at Stanford. She studies how race shapes perception in the criminal justice system and how people perceive social inequality across cultures. Ellen was formerly SPARQ's research manager.

Rachel Song

Rachel Song is a doctoral student in social psychology at the University of Washington. She studies how people's conceptualization of racism and diversity impact collective action. Rachel was previously SPARQ’s research manager.

Daphna Spivack

Daphna Spivack is a law and doctoral student in social psychology at Stanford. She studies racial bias in discretionary decision making in the civil and criminal legal systems.

Catherine Thomas

Catherine Thomas is a doctoral student in social psychology at Stanford. She studies how to leverage social and cultural insights to improve economic development interventions.

Brad Turnwald

Brad Turnwald is a postdoctoral scholar in social psychology at Stanford. He studies how mindsets can affect physiological outcomes and health-related behaviors.


SPARQlab Undergraduate Student Research Assistants

SPARQlab Winter 2019 RAs

SPARQ’s research assistants are an essential and valuable part of our team. Learn more about how to become a research assistant.


Visit our Alumni page to see where some of our former members are now.