Towards a new framework of personalized psychological interventions to improve intergroup relations and promote peace

Recent increases in intergroup tensions and violence have global negative implications and underline the need for effective interventions to ameliorate conflictual relations. Despite the ongoing trend in social psychology toward an interventionist approach, there is still a theoretical and empirical gap in personalizing intergroup interventions to achieve optimal effectiveness. Integrating interventions aimed at prejudice reduction and promoting peace, we present a theoretical framework for personalizing these intergroup interventions. We propose a three-layer model: personalization parameters, intergroup interventions, and mechanisms that link parameter and intervention. To illustrate the model, three sample parameters are described (ideology, dominant emotional sentiments, and Big Five personality types) and three corresponding mechanisms (level of intervention congruency; the degree to which an intervention addresses core appraisal theme; and a needs-based mechanism). We demonstrate how the parameters and mechanisms map onto different established intergroup interventions, and suggest some empirical directions to test and later apply the theoretical framework. Finally, we discuss the potential of personalized interventions to substantially improve intergroup relations.