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Past research has demonstrated that news coverage of cancer research, and scientific research generally, rarely contains discourse-based hedging, including caveats, limitations, and uncertainties. In a multiple message experiment (k = 4 news stories, N = 1082), the authors examined whether hedging shaped the perceptions of news consumers. The results revealed that participants were significantly less fatalistic about cancer (p = .039) and marginally less prone to nutritional backlash (p = .056) after exposure to hedged articles. Participants exposed to articles mentioning a second researcher (unaffiliated with the present study) exhibited greater trust in medical professions (p = .001). The findings provide additional support for the inclusion of discourse-based hedging in cancer news coverage and suggest that news consumers will use scientific uncertainty in illness representations.

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Narratives may outperform argument-based messages in certain situations, notably because they are thought to exert unique influence via particular mediational pathways. The present study tested three sets of potential mediators (believability, counterarguing, emotional reaction) of the relationship between message modality (narrative-vs. argument-based) and the outcome of purchase intentions. Participants (N = 214) were randomly assigned to view one of four advertisements from two brands featuring narrative-or argument-based messages and completed measures of purchase intentions, believability, counterarguing, and emotional reactions to the ad. As hypothesized, narratives increased intentions compared to non narratives. Single moderated mediation models supported the mediating contribution of the completeness dimension of believability, counterarguing, negative and positive affective reaction. A combined moderated mediation model provided further support for positive affect as a mediator. Results provide evidence for several theorized mechanisms of narrative persuasion and illustrate an approach to evaluating multiple mediators in comparative message research.