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Dive into the research topics where Tomas Ståhl is active.

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Featured researches published by Tomas Ståhl.


Journal of Personality and Social Psychology | 2012

The Role of Prevention Focus Under Stereotype Threat: Initial Cognitive Mobilization Is Followed by Depletion

Tomas Ståhl; Colette van Laar; Naomi Ellemers

Previous research has demonstrated that stereotype threat induces a prevention focus and impairs central executive functions. The present research examines how these 2 consequences of stereotype threat are related. The authors argue that the prevention focus is responsible for the effects of stereotype threat on executive functions and cognitive performance. However, because the prevention focus is adapted to deal with threatening situations, the authors propose that it also leads to some beneficial responses to stereotype threat. Specifically, because stereotype threat signals a high risk of failure, a prevention focus initiates immediate recruitment of cognitive control resources. The authors further argue that this response initially facilitates cognitive performance but that the additional cognitive demands associated with working under threat lead to cognitive depletion over time. Study 1 demonstrates that stereotype threat (vs. control) facilitates immediate cognitive control capacity during a stereotype-relevant task. Study 2 experimentally demonstrates the process by showing that stereotype threat (vs. control) facilitates cognitive control as a default, as well as when a prevention focus has been experimentally induced, but not when a promotion focus has been induced. Study 3 shows that stereotype threat facilitates initial math performance under a prevention focus, whereas no effect is found under a promotion focus. Consistent with previous research, however, stereotype threat impaired math performance over time under a prevention focus, but not under a promotion focus.


Personality and Social Psychology Bulletin | 2012

Injustice for All or Just for Me? Social Value Orientation Predicts Responses to Own Versus Other’s Procedures

Tomas Ståhl; Daniel Eek; Paul A. M. Van Lange

In two experiments, the authors investigated how differences in social value orientation predict evaluations of procedures that were accorded to self and others. Proselfs versus prosocials were either granted or denied an opportunity to voice an opinion in a decision-making process and witnessed how someone else was either granted or denied such an opportunity. Consistent with the hypothesis, procedural evaluations of both proselfs and prosocials were influenced by own procedure when other was granted voice, but only proselfs were influenced by own procedure when other was denied voice. These findings were particularly attributable to prosocials’ tendency to evaluate a situation where no-voice procedures are applied consistently between persons more positively than proselfs. It is concluded that proselfs are focused on procedural justice and injustice for self more than prosocials, whereas prosocials value equality in procedures more than proselfs—even when equality implies injustice for all.


Group Processes & Intergroup Relations | 2008

Reactions to Outgroup Authorities' Decisions: The Role of Expected Bias, Procedural Fairness and Outcome Favorability

Tomas Ståhl; Riël Vermunt; Naomi Ellemers

It is argued here that expectations of bias (vs. no bias) play a key role in explaining reactions to decisions made by outgroup authorities. Two experiments demonstrate that decision acceptance (Experiment 1) and intentions to protest against an outgroup authoritys decisions (Experiment 2) are affected by procedural fairness when the authority has a reputation of being unbiased, but not when the authoritys reputation suggests bias. By contrast, some evidence is also found suggesting that reactions to an outgroup authoritys decisions are affected by the favorability of the outcome when the authority has a reputation of being biased, but not when the authority has a reputation of being unbiased. Mediation analyses indicate that two different processes account for these effects.


Group Processes & Intergroup Relations | 2012

Searching for acceptance: Prejudice expectations direct attention towards social acceptance cues when under a promotion focus

Tomas Ståhl; Colette van Laar; Naomi Ellemers; Belle Derks

Prejudice expectations and other interpersonal rejection concerns have been found to direct attention towards social evaluative information. In some studies, rejection concerns have been found to direct attention towards social acceptance cues, whereas other studies have found an attention bias towards social rejection cues. In the present article we argue that these attention biases constitute promotion- (vs. prevention-) oriented strategies to deal with concerns about how one is evaluated. In support of this notion, a first study demonstrated that prejudice expectations direct attention towards male faces signaling happiness (vs. contempt) among women with a chronic promotion focus, but not among women with a chronic prevention focus. A second study demonstrated that the effect generalizes to subliminally presented acceptance-related (vs. nonsocial, sexist) words, and when a promotion (vs. prevention) focus had been experimentally induced. Theoretical and practical implications are discussed.


PLOS ONE | 2016

Moralized Rationality: Relying on Logic and Evidence in the Formation and Evaluation of Belief Can Be Seen as a Moral Issue

Tomas Ståhl; Maarten P. Zaal; Linda J. Skitka

In the present article we demonstrate stable individual differences in the extent to which a reliance on logic and evidence in the formation and evaluation of beliefs is perceived as a moral virtue, and a reliance on less rational processes is perceived as a vice. We refer to this individual difference variable as moralized rationality. Eight studies are reported in which an instrument to measure individual differences in moralized rationality is validated. Results show that the Moralized Rationality Scale (MRS) is internally consistent, and captures something distinct from the personal importance people attach to being rational (Studies 1–3). Furthermore, the MRS has high test-retest reliability (Study 4), is conceptually distinct from frequently used measures of individual differences in moral values, and it is negatively related to common beliefs that are not supported by scientific evidence (Study 5). We further demonstrate that the MRS predicts morally laden reactions, such as a desire for punishment, of people who rely on irrational (vs. rational) ways of forming and evaluating beliefs (Studies 6 and 7). Finally, we show that the MRS uniquely predicts motivation to contribute to a charity that works to prevent the spread of irrational beliefs (Study 8). We conclude that (1) there are stable individual differences in the extent to which people moralize a reliance on rationality in the formation and evaluation of beliefs, (2) that these individual differences do not reduce to the personal importance attached to rationality, and (3) that individual differences in moralized rationality have important motivational and interpersonal consequences.


Journal of Experimental Social Psychology | 2008

The egocentric nature of procedural justice : social value orientation as moderator of reactions to decision-making procedures

David De Cremer; Ilja van Beest; Tomas Ståhl; Marius van Dijke; Paul A. M. van Lange


British Journal of Social Psychology | 2011

By any means necessary: The effects of regulatory focus and moral conviction on hostile and benevolent forms of collective action

Maarten P. Zaal; Colette van Laar; Tomas Ståhl; Naomi Ellemers; Belle Derks


Social Justice Research | 2010

Rape Victim Blaming as System Justification: The Role of Gender and Activation of Complementary Stereotypes

Tomas Ståhl; Daniel Eek; Ali Kazemi


European Journal of Social Psychology | 2004

On the psychology of procedural justice: Reactions to procedures of ingroup vs outgroup authorities

Tomas Ståhl; Jan-Willem van Prooijen; Riël Vermunt


British Journal of Social Psychology | 2012

Social change as an important goal or likely outcome: How regulatory focus affects commitment to collective action

Maarten P. Zaal; Colette van Laar; Tomas Ståhl; Naomi Ellemers; Belle Derks

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Colette van Laar

Katholieke Universiteit Leuven

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Daniel Eek

University of Gothenburg

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Marius van Dijke

Erasmus University Rotterdam

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