Even decades after historical traumas, their scarcity shapes victimhood perceptions and beliefs about outgroups. In one correlational ( N = 369) and one experimental ( N = 510) study, we examined how exclusive versus inclusive victim beliefs predict outgroup, World War II-related, and generic conspiracy beliefs. We also tested the mediating role of three victimogenic cognitive biases: hostile intentions attribution, negative interpretation, and memory bias. Unlike prior work focusing mainly on exclusive victimhood, our studies provide the first direct comparison of both victimhood forms, revealing their distinct and sometimes opposing effects on conspiracy thinking. Correlational results showed that exclusive victim beliefs heightened conspiracy beliefs, with different biases mediating different conspiracy types. Experimental results showed that exclusive victim beliefs increased outgroup and generic conspiracy beliefs through negative interpretation bias, whereas inclusive victim beliefs reduced WWII and generic conspiracies by weakening hostile attribution bias. We discuss the implications of the findings for intergroup relations and post-conflict beliefs.
Gkinopoulos et al. (Thu,) studied this question.