Related Experiment Video
Updated: Jun 25, 2026

The Social Dimension of Stress: Experimental Manipulations of Social Support and Social Identity in the Trier Social Stress Test
Published on: November 19, 2015
Working for the self or working for the group: how self- versus group affirmation affects collective behavior in
Belle Derks1, Colette van Laar, Naomi Ellemers
1Institute for Psychological Research, Social and Organizational Psychology Unit, Leiden University, Leiden, The Netherlands. derks@fsw.leidenuniv.nl
Abstract:
Experiencing social identity threat can lead members of stigmatized groups to protect their self-regard by withdrawing from domains that are associated with higher status groups. Four experiments examined how providing identity affirmation in alternative domains affects performance motivation in status-defining domains among stigmatized group members. Two forms of identity affirmation were distinguished: self-affirmation, which enhances personal identity, and group affirmation, which enhances social identity. The results showed that although self- and group affirmation both induce high performance motivation, they do so in different ways. Whereas self-affirmation induces a focus on the personal self, group affirmation induces a focus on the social self (Study 1). Accordingly, group affirmation elicited high performance motivation among highly identified group members (Studies 1 and 2) by inducing challenge (Study 2) and protected interest in group-serving behaviors that improve collective status (Studies 3 and 4). By contrast, low identifiers were challenged and motivated to perform well only after self-affirmation (Studies 1 and 2) and reported an even stronger inclination to work for themselves at the expense of the group when offered group affirmation (Studies 3 and 4).
Related Concept Videos
Social Loafing
Social Foundations of Self II: The Generalized Other
Strategies of Self-Presentation II: Self-Verification
Impact of Groups on Individuals
Deindividuation
Social Proof

