Michael Hogg

Dr. Hogg’s research focuses on intergroup relations, group processes and the self-concept. It is closely associated with social identity theory. He has researched solidarity and cohesion; group structure and processes of marginalization and deviance; group fragmentation and the pursuit of subgroup autonomy; attitudes and norms; influence and leadership; communication, language and social identity; social identity motivations; and identity-uncertainty and extremist identities and groups.

Lab Manager

Samantha Gardner is researching social identity, uncertainty, language, identity threat, and the polarization of attitudes.

Lab Members

Xiang Ao investigates how group members respond towards various types of ingroup deviance, how identity threats trigger group members’ negative sentiment towards immigrants and outgroups, and the role of social identities in collective mobilization and protest in culturally diverse regions (e.g., Hong Kong).

Kerr, N. L., Ao, X., Hogg, M. A., & Zhang, J. (2018). Addressing replicability concerns via adversarial collaboration: Discovering hidden moderators of the minimal intergroup discrimination effect. Journal of Experimental Social Psychology, 78, 66-76. https://doi:10.1016/j.jesp.2018.05.001

Michael Baum is broadly interested in group processes, intergroup relations, and social identity. Specifically, he is exploring how religiosity, political affiliation, and other social identity related phenomena predict attitudes toward science and scientific expertise.

Matthew Burt (goes by MattB) focuses, through the lens of social identity theory, on the use of funny language and humor. He explores how funny people, both in- and outgroup members, can be viewed as sources of influence and can even persuade us to join their cause.

Michelle Blaya Burgo‘s main focus is on how violent radicalization and extremism can be prevented among youth. Her broad interests are group processes and social justice.

Bélanger, J. J., Robbins, B. G., Muhammad, H., Moyano, M., Nisa, C. F., Schumpe, B. M., & Blaya, M. (2020). Supporting political violence: The role of ideological passion and social network. Group Processes and Intergroup Relations, 23(8), 1187-1203.

Kaiyuan (KY) Chen, a former social identity lab manager, studies how essentialist attributions of ingroup and outgroup characteristics can help reduce self-and identity-uncertainty in intergroup contexts.

Alicia Davis studies the effect of social identity threats on attitudes towards immigrants and immigration. She is also interested in interventions to improve intergroup relations though threat reduction and intergroup contact, and social psychological influences of DEI programs in organizations.

Davis, A. S., Kafka, A. M., González-Morales, M. G., & Feitosa, J. (2022). Team belonging: Integrating teamwork and diversity training through emotions. Small Group Research, 53(1), 88–127.

Sejal Desai has a broad interest in group processes and intergroup relations, with a specific interest in group and organizational culture and self-construal processes.

Harmony Frederick focuses on academic and social identities related to higher education, specifically how these identities impact student retention and continued connection to institutions following graduation.

Ciara Hernandez studies the social psychological underpinnings of international conflict. Specifically, she focuses on intergroup relations, attribution biases, and threat perceptions and their potential to shape the tone of American foreign policy.

Jordan Oster investigates social identity generally, specifically strength of group identification and the intersection of multiple identities. Her current research focuses on gun ownership as a part of one’s social identity.

Mary Peterson is researching factors contributing to the recruitment and membership of individuals into dissenting groups, and the methods these groups use to maintain membership.

Jeff Ramdass is a recent social identity lab alumnus. He has studied reactions to ingroup and outgroup members’ unethical behavior and violation of moral principles, mainly in academic and political contexts. Jeff is also an adjunct faculty member at Cerritos College, and is pursuing opportunities that allow him to focus on the application of social psychological knowledge.

Ramdass, J. V., & Hogg, M. A. (2019). A cheat in our midst: How people evaluate and respond to fellow group members who cheat. Journal of Applied Social Psychology, 49, 735-745. doi: 10.1111/jasp.12630

Amelia Rodriguez researches the role of technology in identity formation, and its role in creating ideological echo chambers.

Crys Saludes studies how people derive a positive sense of human connection, social identity and cohesion through the social networks they belong to. 

Collisson B., Saludes C., Crosier B.S. (2018). Social connection seeking. In Zeigler-Hill V., Shackelford T. (Eds.), Encyclopedia of personality and individual differences. Springer, Cham.

Jacqueline Shaib studies the effects of prejudice and stereotype threat on marginalized groups including women and the LGBTQ community. She is also interested in negative effects on the self as a result of being an outgroup member.

Akshay Sharan’s research lies at the intersection of social and political psychology. His general focus is on the study of social identities and morality in intergroup conflict, and specifically he studies identity uncertainty and its social and political implications.

Austin Shockley focuses broadly on how self- and identity-uncertainty may underpin zealotry and societal extremism.

Timothy Silva is interested in examining how technological change impacts social identity dynamics. Tim is currently Head of Research at Bank of the West in San Francisco.

Heather Stopp studies the influence of contact with identity symbols, such as language, on intergroup attitudes and group identification; with a specific focus on the moderating role played by self-uncertainty and socio-structural factors. Heather currently has a teaching position at Pennsylvania State University.

Lienemann, B.A. & Stopp, H.T. (2013). The association between media exposure of interracial relationships and attitudes toward interracial relationships. Journal of Applied Social Psychology, 43, 398-415.

Alison Young examines how leader evaluations and support are affected by leader-initiated identity validation processes within a group.

Jinghui (Elaine) Zhang researches host nation reactions to migration and immigration. In particular how migrants can invoke identity uncertainty that motivates an extremist anti-migrant backlash. She is collecting data in Shanghai. Jinghui serves as adjunct faculty at California Polytechnic State University, Pomona.

Kerr, N.L., Ao, X., Hogg, M.A., & Zhang, J. (2018). Addressing replicability concerns via adversarial collaboration: Discovering hidden moderators of the minimal intergroup discrimination effect. Journal of Experimental Social Psychology, 78, 66-76.\

Postdoctoral and Professorial Affiliates

Sucharita Belavadi is a former Social Identity Lab member and postdoc, and is currently an Assistant Professor at Jindal Global University in Delhi, India ( She investigates self-uncertainty processes in intergroup conflicts, especially in the context of Indian religious and language-based groups. Of particular interest is how groups perceive marginal ingroup members within the context of language and social identity. She also examines how groups engage in a narrative of competitive victimhood during intergroup conflict.

Amber Gaffney is a former Social Identity Lab member and postdoc and currently an Associate Professor of Social Psychology at California Polytechnic University Humboldt. She is also an Associate Editor for Group Processes and Intergroup Relations and for the Journal of Applied Social Psychology. She studies how prototypical and non-prototypical group members create and manage uncertainty to enact social change. Amber is also interested in social comparison processes and in social identity and uncertainty dynamics in the political sphere.

Fiona Grant, a former Social Identity Lab member and postdoc, is an Assistant Professor of Social Psychology at the University of Mauritius. She studies social identity processes in health contexts, specifically the role of group membership in health promotion and exercise behavior. She also conducts research on social identity complexity and how people cope with multiple identities during times of uncertainty.

Justin Hackett is a former member of the lab and currently Professor of Psychology and Chair of the Psychology Department at Pennsylvania Western University. His research focuses primarily on social engagement and sense of community.

Zachary Hohman is a former lab member and currently an Associate Professor of Experimental Psychology at Texas Tech University. His research focuses on group processes, intergroup relations and the self-concept, and also the role played by attitudes and persuasion. Zach is also interested in how these processes play out in health contexts.

Jiin Jung is a former Social Identity Lab member and postdoc, and is currently a postdoc in the Department of Psychology at New York University. She researches the impact of identity-uncertainty on group identification, intergroup perceptions, and group integration and schism. She has collected data in the context of Korean reunification and Scottish independence. Jiin also examines computational models of social influence, and uncertainty-related determinants of depersonalization and projection.

Norbert L. Kerr was a visiting professor at Claremont Graduate University for the 2016-2017 academic year. He is an Emeritus Professor of Psychology at Michigan State University and an Honorary Professor of Social Psychology at the University of Kent in Canterbury. His primary research interests are group performance and decision making, social dilemmas, psychology and the law, social influence, and HARKing (Hypothesizing After the Results are Known).

David Rast is a former lab member and is currently an Associate Professor of social psychology at the University of Alberta in Edmonton, Canada. He is a former Associate Editor of the Journal of Applied Social Psychology. He examines when non-prototypical leaders become influential and how leaders transcend conflict-charged intergroup relations.

Viviane Seyranian is a former lab member and an Associate Professor of Psychology at California Polytechnic State University, Pomona. Her research examines the role of communication tactics and source types (e.g., majorities-minorities) on attitudes, emotions, and behaviors. Viviane is testing a theory called social identity framing, which outlines communication tactics related to social identity change.

Joey Wagoner, a former lab member and postdoc, is currently a postdoc in the Department of Psychology at the University of Colorado, Colorado Springs. Joey studies the dynamics of subgroup autonomy and independence within a larger group, and the ultimate possibility of schism. He also investigates the role of group-level warmth and competence perceptions in resolving identity-uncertainty.

Visiting Scholars

Leonardo Francesco Boccia (Sapienza Università di Roma, Italy)

Ray Paloutzian (Westmont College)

Bin Ling (Hohai University, China)

Bin Ling (Hohai University, China)
Antti Vanhoja (University of Helsinki, Finland)

Oluf Gøtzsche-Astrup (Aarhus University, Denmark)
Stefano Mastandrea (Università Degli Studi Roma Tre)

Matthew Hornsey (University of Queensland, Australia)
Robin Vallacher (Florida Atlantic University)
Gianmarco Donadei (Sapienza Università di Roma, Italy)
Alessio Mammarella (Sapienza Università di Roma, Italy)

Dominic Abrams (University of Kent, UK)

Clara Paz (Universidad de Barcelona, Spain)

Matteo Antonini (Sapienza Università di Roma, Italy)
Antonis Gardikiotis (Aristotle University of Thessaloniki, Greece)

Vladimir Turjacanin (Banja Luka University, Bosnia and Herzegovina)
Madeleine Moret (University of Amsterdam, The Netherlands)
Antonis Gardikiotis (Aristotle University of Thessaloniki, Greece)

Robin Martin (Aston Business School, UK)
Camilo Cristancho Mantilla (Universidad Autónoma de Barcelona, Spain)
Vladimir Turjacanin (Banja Luka University, Bosnia and Herzegovina)

Daan van Knippenberg (Rotterdam School of Management, The Netherlands)

Dominic Abrams (University of Kent, UK)
Robin Martin (Aston Business School, UK)
Marilynn Brewer (Ohio State University)

Richard Crisp (University of Kent, UK)
David Sherman (University of California, Santa Barbara)

Former Members

Yasemin Acar (Özyeğin University, Istanbul, Turkey)
Janice Adelman (Society for the Psychological Study of Social Issues)
Nicolas Barreto (Stanford University)
Sucharita Belavadi (Jindal Global University, Delhi, India)
Robert Blagg (University of California, Los Angeles, Consortium for Children & Families)
Danielle Blaylock (Queens University, Belfast, UK)
Eunice Choi (Saddleback College)
Jared Chapman
Tamara Duggan-Herd (Kravis Leadership Institute, Claremont-McKenna College)
Amber Gaffney (California Polytechnic University Humboldt)
Liran Goldman (Naval Criminal Investigative Service)
Fiona Grant (University of Mauritius, Mauritius)
Justin Hackett (California University of Pennsylvania)
John Haller (Claremont McKenna College)
Zachary Hohman (Texas Tech University)
Jiin Jung (New York University)
Carola Leicht (University of Kent, UK)
Namrata Mahajan (Cobblestone Applied Research and Evaluation, Los Angeles)
Monique Matelski (Cobblestone Applied Research and Evaluation, Los Angeles)
Cody Packard
Jeff Ramdass
David Rast (University of Alberta, Edmonton, Canada)
Mark Rinella (Food and Drug Administration, US)
Jason Rivera (Claremont Graduate University and Pitzer College)
Shirley Samson (University of Kent, UK)
Dana Turcotte (Netflix, Inc.)
Suzanne van Gils (Maastricht University, The Netherlands)
Joey Wagoner (University of Colorado, Colorado Springs)
Jennifer Williams Isaac Young (University of Arizona)
Jinghui (Elaine)
Zhang (Arizona State University)