From sheer difference to worldview conflict discrimination: Testing cross-domain links and the role of confidence, Experiment 2

Le résumé fourni par la source

This online study is based on the sheer difference paradigm developed by Deschrijver and Ramsey (2025), which demonstrated that people show discriminatory behaviour toward others purely because they hold opposing views, even in the absence of groups. The paradigm itself is inspired by the minimal group framework introduced by Tajfel and Turner (1978), but removes any reference to group membership, allowing discrimination to emerge purely from disagreement. In our first study, we extended this approach by examining whether discriminatory tendencies observed in the task also relate to real-world worldview conflict discrimination. Drawing on work on worldview conflict and ideological intolerance (Brandt et al., 2014; Wetherell, Brandt, & Reyna, 2013), we investigated whether individuals who discriminate in the sheer difference task (i.e., favouring the other when they share their view over the other when they disagree) also show stronger discrimination toward different social and political groups. Additionally, we tested whether participants’ confidence is related to the degree of discrimination they show in the task. This second study aims to replicate these findings in a larger sample, while also investigating the moderating role of neurocognitive conflict monitoring and need for closure.

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