Telephone number:	+31 (0)71 527 3708
E-Mail:	tstahl@fsw.leidenuniv.nl
Faculty / Department:	Faculteit der Sociale Wetenschappen, Instituut Psychologie, Sociale en Organisatiepsychologie
Office Address:	Pieter de la Court gebouw Wassenaarseweg 52 2333 AK Leiden Room number 2A35

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Dr. Tomas Ståhl graduated in Social Psychology at University of Skövde, Sweden, and obtained his PhD in Social Psychology at Leiden University in 2006. His PhD research focused on reactions to ingroup and outgroup authorities’ allocation decisions. More specifically, his thesis examined effects of procedural fairness versus procedural (and outcome) favorability on reactions to allocation decisions, and to what extent these effects are moderated by the group membership of the authority. The psychological processes accounting for differences between reactions to ingroup and outgroup authorities’ allocation decisions were also examined, focusing on factors such as expectations of bias and the operation of instrumental and relational processing goals. Since March 2007 he is working as a post doc researcher at Leiden University.

Research

Tomas' current research focuses on self-regulatory processes among members of stigmatized groups. In one line of research he examines how regulatory focus influences stigmatized individuals’ capacity to exert self-control in motivated performance situations. Another line of research addresses the relationship between regulatory focus and detection of subtle discrimination. Other research interests include the psychology of victim blaming, and the psychology of procedural justice.

Publications

• Van Prooijen, J.-W., Ståhl, T., Eek, D., & Van Lange, P. A. M. (in press). Injustice for all or just for me? Social value orientation predicts responses to own versus other's procedures. Personality and Social Psychology Bulletin.
• Ståhl, T., Van Laar, C., & Ellemers, N. (in press). The role of prevention focus under stereotype threat: Initial cognitive mobilization is followed by depletion. Journal of Personality and Social Psychology.
• Ståhl, T., Van Laar, C., Ellemers, N., & Derks, B. (in press). Searching for acceptance: Prejudice expectations direct attention towards social acceptance cues when under a promotion focus. Group Processes and Intergroup Relations.
• Zaal, M.P., Van Laar, C., Ståhl, T., Ellemers, N., & Derks, B. (in press). Social change as an important goal or likely outcome: how regulatory focus affects commitment to collective action. British Journal of Social Psychology. 
• Zaal, M.P., Van Laar, C., Ståhl, T., Ellemers, N., Derks, B. (2011). By any means necessary: The effects of regulatory focus and moral conviction on hostile and benevolent forms of collective action. British Journal of Social Psychology, 50, 670-689. 
• Ståhl, T., Eek, D., & Kazemi, A. (2010) Rape victim blaming as system justification: The role of gender and activation of complementary stereotypes. Social Justice Res earch 23, 239-258.
• Ståhl, T., Vermunt, R., & Ellemers, N. (2008). Reactions to outgroup authorities’ decisions: The role of expected bias, procedural fairness and outcome favorability. Group Processes and Intergroup Relations, 11, 281-299. 
• Ståhl, T., Vermunt, R., & Ellemers, N. (2008). For love or money? How activation of relational versus instrumental concerns affects reactions to decision-making procedures. Journal of Experimental Social Psychology, 44, 80-94.
• Ståhl, T., Vermunt, R., & Ellemers, N. (2006). Friend or foe? Ingroup identification moderates reactions to outgroup members’ allocation behavior. European Journal of Social Psychology, 36, 877-885.
• Ståhl, T., Van Prooijen, J-W., & Vermunt, R. (2004). On the psychology of procedural justice: Reactions to procedures of ingroup vs. outgroup authorities. European Journal of Social Psychology, 34, 173-189.

More Information about the Department of Social & Organizational Psychology

For more information about the Department of Social and Organizational Psychology, please visit the website S&O.