Individuals with populist radical-right (PRR) attitudes seem particularly inclined to spread disinformation. However, it is unclear whether this is due to the large amount of disinformation with a PRR bias or a general tendency to perceive disinformation as credible and/or spread it further. This study explores (1) effects of a PRR bias on perceived message credibility and likelihood of spreading disinformation, (2) the extent to which perceived message credibility mediates the spread of disinformation, (3) effects of PRR attitudes on the perceived message credibility of biased disinformation, and (4) whether a PRR bias of disinformation explains the spread of disinformation by individuals with PRR attitudes despite a lack of credibility. An online experimental study (N = 572) in Germany showed that the spread of disinformation is mediated by perceived message credibility of disinformation. PRR attitudes positively predict perceived message credibility regardless of whether it is biased or unbiased disinformation.

中文翻译：

---

当信息正确时，可信度会变得微不足道吗？民粹主义激进右翼态度、感知的信息可信度和虚假信息的传播

持民粹主义激进右翼 (PRR) 态度的个人似乎特别倾向于传播虚假信息。然而，尚不清楚这是由于大量带有 PRR 偏见的虚假信息，还是普遍倾向于将虚假信息视为可信和/或进一步传播。本研究探讨 (1) PRR 偏见对感知消息可信度和传播虚假信息的可能性的影响，(2) 感知消息可信度在多大程度上介导虚假信息的传播，(3) PRR 态度对感知消息可信度的影响有偏见的虚假信息，以及 (4) 虚假信息的 PRR 偏见是否解释了尽管缺乏可信度但具有 PRR 态度的个人传播虚假信息。德国的一项在线实验研究 (N = 572) 表明，虚假信息的传播是由感知到的虚假信息的可信度来调节的。PRR 态度积极预测感知消息的可信度，无论它是有偏见的还是无偏见的虚假信息。