I am interested how self-perception enhances human effectiveness, particularly in the domains of group processes and personal performance. My work on group processes examines questions about group identification, social stigma, decision-making, negotiations, and conflict in intergroup and intragroup settings. My work on personal performance examines how individuals' motivation, self-theories, and self-evaluations affect performance and negotiator success.
This research is programmatic and empirical, and I have tested predictions derived from optimal distinctiveness theory, inclusive fitness theory, social identity theory, self-categorization theory, the group engagement model, the self-protective properties of social stigma, regulatory focus theory, and research on implicit theories of intelligence, self-evaluation, behavioral economics, and intergroup contact.
- Aggression, Conflict, Peace
- Evolution and Genetics
- Group Processes
- Helping, Prosocial Behavior
- Intergroup Relations
- Motivation, Goal Setting
- Organizational Behavior
- Prejudice and Stereotyping
- Research Methods, Assessment
- Self and Identity
Research Group or Laboratory:
- Kramer, R. M., Leonardelli, G. J., & Livingston, R. W. (2011). Social cognition, social identity, and intergroup relations: A festschrift in honor of Marilynn Brewer. Psychology Press Festschrift series. New York, NY: Taylor & Francis.
- Leonardelli, G. J., Pickett, C. L., & Brewer, M. B. (2010). Optimal distinctiveness theory: A framework for social identity, social cognition and intergroup relations. In M. Zanna & J. Olson (Eds.) Advances in experimental social psychology (Vol. 43, pp. 65-115). New York: Elsevier.
- Zhong, C. B., & Leonardelli, G. J. (2008). Cold and lonely: Does social exclusion literally feel cold? Psychological Science, 19(9), 838-842.
- Galinsky, A. D., Leonardelli, G. J., Okhuysen, G. A., & Mussweiler, T. (2005). Regulatory focus at the bargaining table: Promoting distributive and integrative success. Personality and Social Psychology Bulletin, 31(8), 1087-1098.
- Zhong, C., Phillips, K. W., Leonardelli, G. J., & Galinsky, A. (2008). Negational categorization and intergroup behavior. Personality and Social Psychology Bulletin, 34(6), 793-806.
- Leonardelli, G. J., Lakin, J. L., & Arkin, R. M. (2007). A regulatory focus model of self-evaluation. Journal of Experimental Social Psychology, 43(6), 1002-1009.
- Rosette, A., Leonardelli, G. J., & Phillips, K. W. (2008). The White standard: Racial bias in leader categorization. Journal of Applied Psychology, 93(4), 758-777.
- Toh, S.M., & Leonardelli, G.J. (2012). Cultural constraints on the emergence of women as leaders. Journal of World Business.
- Leonardelli, G. J., Hermann, A. D., Lynch, M. E., & Arkin, R. M. (2003). The shape of self-evaluation: Implicit theories of intelligence and judgments of intellectual ability. Journal of Research in Personality, 37, 141-168.
- Leonardelli, G. J., & Tormala, Z. L. (2003). The negative impact of perceiving discrimination on collective well-being: The mediating role of perceived ingroup status. European Journal of Social Psychology, 33, 507-514.
- Hermann, A. D., Leonardelli, G. J., & Arkin, R. M. (2002). Self-doubt and self-esteem: A threat from within. Personality and Social Psychology Bulletin, 28, 395-408.
- Leonardelli, G. J., & Brewer, M. B. (2001). Minority and majority discrimination: When and why. Journal of Experimental Social Psychology, 37, 468-485.
- De Cremer, D., & Leonardelli, G. J. (2003).Cooperation in social dilemmas and the need to belong: The moderating effect of group size. Group Dynamics: Theory, Research, and Practice, 7(2), 168-174.
- Leonardelli, G.J., & Toh, S.M. (2011). Perceiving expatriate coworkers as foreigners encourages aid: Social categorization and procedural justice together improve intergroup cooperation and dual identity. Psychological Science, 22(1), 110-117.
- Pickett, C. L., & Leonardelli, G. J. (2006). Using collective identities for assimilation and differentiation. In T. Postmes & J. Jetten (Eds.), Individuality and the Group: Advances in Social Identity (pp. 56-73). Thousand Oaks, CA, USA: Sage Publications.
- Leonardelli, G. J., Pickett, C. L., Joseph, J. E., & Hess, Y. D. (2011). Optimal distinctiveness theory in nested categorization contexts: Moving from dueling identities to a dual identity. In R. M. Kramer, G. J. Leonardelli, & R. W. Livingston (Eds.), Social Cognition, Social Identity, and Intergroup Relations: A Festschrift in Honor of Marilynn Brewer (pp. 103-125). Psychology Press Festschrift series. New York, NY: Taylor & Francis.
- Leonardelli, G. J., & Lakin, J. L. (2010). The new adventures of regulatory focus: Self-uncertainty and the quest for a diagnostic self-evaluation. In R. M. Arkin, K. C. Oleson, P. J. Carroll (Eds.), The uncertain self: A handbook of perspectives from social and personality psychology. Mahwah, NJ, USA: Lawrence Erlbaum Associates, Inc.
- Thompson, L. L., & Leonardelli, G. J. (2004). The big bang: The evolution of negotiation research. Academy of Management: Executive, 18(3), 113-117.
- Thompson, L. L., & Leonardelli, G. J. (2004). Why negotiation is the most popular business school course. Ivey Business Journal, 1-7.
- Experimental Methods
- Introductory Social Psychology
- Leading Teams
Rotman School of Management
University of Toronto
105 St. George Street
Toronto, ON M5S 3E6
- Phone: (416) 946-0731
- Fax: (416) 978-4629