Using person-centred analyses to predict engagement in collective action for the climate

• Using Latent Profile Analysis examined climate action intentions, identifying three profiles. • Well-adjusted personality and higher identification predicted conventional action. • Threat-sensitive ambivalents were associated with radical intentions. • Hierarchy enhancers (higher in dominance) were associated with radical intentions. The last decade has seen a growing number of social movements campaigning for action on climate, and some of this collective action has involved radical behaviours. Despite this, little research has identified the individual difference profiles of people who engage in conventional versus radical collective action for the climate. In two studies with supporters of climate action (Study 1, N = 494; Study 2, N = 498), latent profile analyses found that a well-adjusted profile (i.e., higher agreeableness, extraversion, openness, conscientiousness and identification) is associated with higher conventional action intentions. Another profile, threat-sensitive ambivalents , was characterised by lower identification, conventional intentions, and inconsistent support for radical intentions. Finally, a hierarchy enhancers profile, characterised by higher social dominance orientation, was associated with radical action intentions. The data illuminate the associations of individual differences and group identification and speak to the importance of the power motive for a subset of radical actors.