Recent theoretical models stress the importance of both personal and contextual factors in the development of political extremism. One such theory is the Intergroup Threat Theory (ITT) that suggests a relationship between extremism and intergroup threat (i.e., the perception that one's ingroup is threatened by a particular social outgroup). Using an adaptation of the Semantic Misattribution Procedure (SMP), the present research aimed at replicating the results of previous studies using a novel measure. In a first study (N = 88, 77% female), self-reported intergroup threat was significantly and positively related to two types of extreme political attitudes, namely, right-wing authoritarianism and generic conspiracy beliefs. The SMP score, in contrast, was only significantly correlated to right-wing authoritarianism. In a second study, these results were replicated in a larger sample (N = 243, 68% female). Moreover, both self-reported and indirectly measured intergroup threat were related to hostile attitudes and stereotypes against immigrants. When compared to explicit intergroup threat, however, the SMP score was not incremental in the prediction of hostile attitudes against immigrants. These results support the validity of the SMP for the assessment of intergroup threat. Replications should explore the practical utility of the SMP in other samples using additional validation criteria.

中文翻译：

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关于右翼态度、阴谋信念和群体间威胁之间的关系：引入一种间接衡量群体间威胁的方法

最近的理论模型强调个人和背景因素在政治极端主义发展中的重要性。一种这样的理论是群体间威胁理论 (ITT)，它表明极端主义和群体间威胁之间存在关系（即，一个人的内群体受到特定社会外群体的威胁）。本研究使用语义错误归因程序 (SMP) 的改编版，旨在使用一种新颖的措施复制先前研究的结果。在第一项研究中（N = 88, 77% 女性），自我报告的群体间威胁与两种极端政治态度显着正相关，即右翼威权主义和一般阴谋信仰。相比之下，SMP 分数仅与右翼威权主义显着相关。在第二项研究中，这些结果在更大的样本（N = 243，68% 是女性）。此外，自我报告和间接测量的群体间威胁都与对移民的敌意态度和刻板印象有关。然而，与明确的群体间威胁相比，SMP 分数在预测对移民的敌对态度方面并没有增加。这些结果支持了 SMP 评估群际威胁的有效性。复制应该使用额外的验证标准探索 SMP 在其他样本中的实际效用。