Feeling anxious and being engaged in a warming world: climate anxiety and adolescents' pro-environmental behavior.

Background: Climate anxiety is increasingly prevalent among adolescents worldwide. Are climate-anxious adolescents prone to engage in pro-environmental behavior? Or might the association between climate anxiety and pro-environmental be curvilinear, such that high levels of climate anxiety become 'paralyzing'? And do these associations depend on whether adolescents believe that, with effort, the worst impacts of climate change can still be prevented?

Methods: We addressed these questions in three studies (two preregistered; combined N = 2,211), conducted across two countries. We used cross-sectional and longitudinal methods, and various measures of climate anxiety and pro-environmental behavior.

Collective nostalgia as a balm for the distressed social identity.

Group history provides the experiential building blocks that shape social identity. When contemporary events are perceived as having created (or creating) a discontinuity with that history, collective nostalgia is likely to be elicited. Importantly, collective nostalgia is functional-it consolidates social identity, motivating group members to support a return to the group's "true" state of existence.

Collective nostalgia: Triggers and consequences for collective action intentions.

Global trends surveys suggest that collective nostalgia for one's country is widespread. Moreover, research indicates that collective nostalgia is used by populist radical-right parties to mobilize their voters against immigration. We focused on antecedents of collective nostalgia and its consequences for collective action in the context of national identity.

The Different Faces of Social Tolerance: Conceptualizing and Measuring Respect and Coexistence Tolerance.

Unlabelled: In the theoretical literature on tolerance a distinction is proposed between coexistence and respect tolerance. In three studies with four national samples of Dutch majority members, we demonstrate that these two forms of tolerance can be distinguished empirically in relation to different immigrant target groups. The findings of all studies further show that the more principled respect tolerance was negatively associated with prejudice towards immigrants, and positively associated with the acceptance of concrete minority practices, above and beyond prejudice.

Social identity continuity and mental health among Syrian refugees in Turkey.

Purpose: Building upon social psychological work on social identity and mental health, this study among Syrian refugees in Turkey examined the importance of multiple group memberships and identity continuity for mental health and well-being.

Method: A survey study was conducted among the very difficult to reach population of Syrian refugees (N = 361). With path analysis in AMOS the associations were examined between multiple group memberships, social identity continuity and mental health and psychological well-being.

Longing for the country's good old days: National nostalgia, autochthony beliefs, and opposition to Muslim expressive rights.

Four studies tested the prediction that feelings of national nostalgia (i.e. nostalgia on the basis of one's national ingroup membership) result in more opposition towards expressive rights for Muslim immigrants, because they strengthen the belief that a place belongs to its original inhabitants, and that they are therefore more entitled (i.

The multicultural jigsaw puzzle: category indispensability and acceptance of immigrants' cultural rights.

This research introduces and examines the relatively novel concept of category indispensability. It is examined whether the perception of subgroup indispensability for the identity of a superordinate category is associated with majority members' acceptance of minority rights. We investigated the role of perceived national category indispensability of immigrants for native's acceptances of immigrants' expressive cultural rights.

How a tolerant past affects the present: historical tolerance and the acceptance of Muslim expressive rights.

Three studies, conducted in The Netherlands, examined the relationship between a tolerant representation of national history and the acceptance of Muslim expressive rights. Following self-categorization theory, it was hypothesized that historical tolerance would be associated with greater acceptance of Muslim expressive rights, especially for natives who strongly identify with their national in-group. Furthermore, it was predicted that the positive effect of representations of historical tolerance on higher identifiers' acceptance could be explained by reduced perceptions of identity incompatibility.

Mobilizing opposition towards Muslim immigrants: national identification and the representation of national history.

This research, conducted in the Netherlands, investigates whether people who do not feel strongly committed to their national in-group (i.e., lower identifiers) can be mobilized against expressive rights of Muslim immigrants when specific historical representations of the nation are made salient.