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<p>While misinformation is often assumed to directly affect behaviour, experimental tests of this hypothesis are rare. We examined effects of a single exposure to misinformation on political and non-political behaviours. Study 1 participants (<i>N</i> = 2,397) were exposed to a fabricated news story about food contamination, with a subset (<i>n</i> = 143) subsequently invited to taste the targeted foods in a laboratory setting. Exposure to the fabricated story did not significantly affect attitudes towards or consumption of the target food. Study 2 (<i>n</i> = 417) confirmed that results were not specific to the particular story presented. Finally, Study 3 (<i>n</i> = 413) tested effects of misinformation about climate change. Exposure to climate-skeptical misinformation reduced signatures on an online petition, but had no effect on two other targeted behaviours. We conclude with a call for further experimental research to delineate the conditions under which misinformation does and does not affect behaviour.</p>

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Evaluating real-world effects of one-off fake news exposure

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年9月30日

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  • Ciara M. Greene,
  • Maryanne Brassil,
  • Eden Bryan,
  • Skylee Blair Glass,
  • Rhiannon O’Connor,
  • Valerie O’Keeffe,
  • Emilia Howarth,
  • Leenisha Russel D’Silva,
  • Ruiqi Tong,
  • Gillian Murphy

摘要

While misinformation is often assumed to directly affect behaviour, experimental tests of this hypothesis are rare. We examined effects of a single exposure to misinformation on political and non-political behaviours. Study 1 participants (N = 2,397) were exposed to a fabricated news story about food contamination, with a subset (n = 143) subsequently invited to taste the targeted foods in a laboratory setting. Exposure to the fabricated story did not significantly affect attitudes towards or consumption of the target food. Study 2 (n = 417) confirmed that results were not specific to the particular story presented. Finally, Study 3 (n = 413) tested effects of misinformation about climate change. Exposure to climate-skeptical misinformation reduced signatures on an online petition, but had no effect on two other targeted behaviours. We conclude with a call for further experimental research to delineate the conditions under which misinformation does and does not affect behaviour.