Related Experiment Video
Updated: Jul 18, 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
Protecting threatened identity: sticking with the group by emphasizing ingroup heterogeneity
Paul Hutchison1, Jolanda Jetten, Julie Christian
1Institute of Psychological Science, University of Leeds, United Kingdom. p.a.hutchison@leeds.ac.uk
Abstract:
In two studies (Ns=163, 164), the authors tested the prediction that perceptions of group variability can steer and guide the way that loyalty is expressed in times of identity threat. In both studies, participants were classified as lower or higher identifiers on the basis of their scores on a group identification measure, and manipulations involved group variability perceptions (homogeneous ingroup vs. heterogeneous ingroup) and threat to the ingroup. Higher identifiers presented with a homogeneous ingroup perceived more ingroup homogeneity under threat than when there was no threat. In contrast, higher identifiers who perceived the ingroup initially as heterogeneous perceived more ingroup heterogeneity under threat than in no threat conditions. Lower identifiers perceived more ingroup heterogeneity under threat (vs. no threat) irrespective of manipulated group variability perceptions. Discussion focuses on different ways that group loyalty can be expressed in times of identity threat.
Related Concept Videos
In- and Out-Groups
Social Identity
Ethnic Identity within a Larger Culture
Protecting Self-Esteem
Groupthink
Deindividuation

