
Claudia Toma
- Media Contact
Group decision making: My research interest is concerned with how group members strategically share and use their information in group decision making. I examine the role of cooperation and competition in information withholding and preference confirmation, especially in hidden profiles. The results of our studies support a motivated information processing approach to group decision making.
Egocentric biases in judgment: I'm also interested to understand how interactions with interdependent or similar others influence various egocentric biases like social projection and illusion of transparency. In this context, my colleagues and I showed that people project more their attributed traits into a target when they anticipate cooperation, rather than competition. We have also shown that people project mainly on those traits that ensure positive outcomes suggesting that social projection is a motivated process.
Primary Interests:
- Group Processes
- Interpersonal Processes
- Judgment and Decision Making
- Social Cognition
Research Group or Laboratory:
Journal Articles:
- Ames, D. R., Mor, S., & Toma, C. (2013). The double-edge of similarity and difference mindsets: What comparison mindsets do depends on whether self or group representations are focal. Journal of Experimental Social Psychology, 49, 583-587.
- Gilles, I., Scheidegger, R., & Toma, C. (2011). Who likes the rebels and who likes the allegiants? The role of membership and status in the judgement of rebel attributions. International Review of Social Psychology, 24, 83-106.
- Hayek, A.S., Toma, C., Oberlé, D., & Butera, F., (2015). Grades inhibit cooperation: individual evaluation hampers information sharing in cooperative problem solving. Social Psychology, 46, 121-131.
- Hayek, A.S., Toma, C., Oberlé, D., & Butera, F., (2014). The effects of grades on the preference effect: Grading reduces consideration of disconfirming evidence. Basic and Applied Social Psychology, 36, 544-552.
- Jiga-Boy, G., Toma, C. & Corneille, O. (2014). Work more and feel more: The influence of effort on affective predictions. PlosOne, 9(7), e101512.
- Machunsky, M., Toma, C., Yzerbyt, V., & Corneille, O. (2014). Social projection increases for positive targets: Ascertaining the effect and exploring its antecedents. Personality and Social Psychology Bulletin, 40, 1373-1388.
- Toma, C., Bry, C., & Butera, B. (2013). Because I’m worth it! (More than others…): Cooperation, competition and ownership bias in group-decision making. Social Psychology, 44, 248-255.
- Toma, C. & Butera, F. (2015). Cooperation versus competition effects on information sharing and use in group decision-making. Social and Personality Psychology Compass, 9, 455-467.
- Toma, C., & Butera, F. (2009). Hidden profiles and concealed information: Strategic information sharing and use in group decision making. Personality and Social Psychology Bulletin, 35, 793-806.
- Toma, C., Corneille, O., & Yzerbyt, V. (2012). Holding a mirror up to the self: Egocentric similarity beliefs underlie social projection in cooperation. Personality and Social Psychology Bulletin, 38, 1259-1271.
- Toma, C., Gilles, I., & Butera F. (2013). Strategic use of preference confirmation in group decision making: The role of competition and dissent. British Journal of Social Psychology, 52, 44-63.
- Toma, C., Vasiljevic, D., Augustinova, M., Oberlé, D., & Butera, F. (2012). Le traitement motivé de l’information dans la prise de décision en groupe : Le cas du paradigme des « profils cachés ». L’Année Psychologique, 112, 665-695.
- Toma, C., Vasiljevic, D., Oberlé, D., & Butera, F. (2013). Assigned experts with competitive goals withhold information in group decision making. British Journal of Social Psychology, 52, 161-172.
- Toma, C., & Woltin, K. A. (2012). Motivational and contextual considerations concerning the social projection hypothesis. Psychological Inquiry, 23, 69-74.
- Toma, C., Yzerbyt, V., & Corneille, O. (2012). Nice or smart? Task relevance of self-characteristics moderates interpersonal projection. Journal of Experimental Social Psychology, 48, 335-340.
- Toma, C., Yzerbyt, V., & Corneille, O. (2010). Anticipated cooperation vs. competition moderates interpersonal projection. Journal of Experimental Social Psychology, 46, 375-381.
Other Publications:
- Butera, F., & Toma, C. (2012). La conferma di sé. In R. Rumiati (Ed.), Tra pensieri e comportamenti – Scritti in onore di Paolo Legrenzi. Bologna : Il Mulino.
- Schreiber, C., & Toma, C. (2006). Identite, genre et representations. Apport de la psychologie sociale a la comprehension des phenomenes lies a la mixite. Dans Genre en Education I. L'education des filles et des garcons a l'ecole. Quelles limites? Quels Defis? Editions Eaux Claires, IUFM Grenoble.
- Toma, C. (2011). Compétition et rétention de l'information. In F. Butera, C. Buchs & C. Darnon (Eds.), L'évaluation, une menace? Paris: Presses Universitaires de France.
Courses Taught:
- Group Dynamics
- Introduction to Psychology
- Methods in Social Psychology
- Multiculturality and diversity
- Organizational Behavior and Leadership
- Psychology of Change: Attitudes and Persuasion
- Psychology of Socio-Cognitive Development
- The Psychology of Negotiation
- Work Group Psychology
Claudia Toma
Department Organizations, Work and Human Ressources, Centre Emile Bernheim
Solvay Brussels School of Economics and Managment
50 Av F D Roosevelt
1050 Brussels
Belgium
- Phone: +32-2-650-38-35