Abstract
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.
Acknowledgements
I gratefully thank Michaela Maier and Teresa Gil-López for their helpful feedback on previous versions of this manuscript.
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Data availability
The data that support the findings of this study are available on request from Clara Christner.
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