Commentary on "Do Vaping Prevention Messages Impact Adolescents and Young Adults? A Meta-Analysis of Experimental Studies".

Preventing vaping by adolescents and young adults is unquestionably an important goal. Ma et al.'s meta-analysis invites the conclusion that vaping prevention messages are effective.

Message Design Choices Don't Make Much Difference to Persuasiveness and Can't Be Counted On-Not Even When Moderating Conditions Are Specified.

Persuaders face many message design choices: narrative or non-narrative format, gain-framed or loss-framed appeals, one-sided or two-sided messages, and so on. But a review of 1,149 studies of 30 such message variations reveals that, although there are statistically significant differences in persuasiveness between message forms, it doesn't make much difference to persuasiveness which option is chosen (as evidenced by small mean effect sizes, that is, small differences in persuasiveness: median mean s of about 0.10); moreover, choosing the on-average-more-effective option does not consistently confer a persuasive advantage (as evidenced by 95% prediction intervals that include both positive and negative values).

Message generalizations that support evidence-based persuasive message design: specifying the evidentiary requirements.

Evidence-based persuasive message design can be informed by dependable research-based generalizations about the relative persuasiveness of alternative message-design options. Five propositions are offered as specifying what constitutes the best evidence to underwrite such generalizations: (1) The evidence should take the form of replicated randomized trials in which message features are varied. (2) Results should be described in terms of effect sizes and confidence intervals, not statistical significance.

'What matters to Andrew'. The problem of premissary relevance in automated health advisors. Insights from pragma-dialectics.

Objective: To influence health behavior, communication has to be relevant on an individual level and, thus, fulfill the requirement of premissary relevance. This paper attempts to enrich the design of automated health advisors by, first, reviewing main solutions to the challenge of premissary relevance found in the literature and, second, highlighting the value in this field of the theory of argumentation known as pragma-dialectics.

Methods: A conceptual paper grounded in persuasion research and argumentation theory.

Gain-framed messages do not motivate sun protection: a meta-analytic review of randomized trials comparing gain-framed and loss-framed appeals for promoting skin cancer prevention.

Persuading people to undertake actions to prevent skin cancer is an important public health challenge. A number of studies have compared the effectiveness of gain-framed and loss-framed appeals in this domain, often expecting gain-framed appeals to be more persuasive. A meta-analytic review (k = 33, N = 4,168), however, finds no significant difference in the persuasiveness of gain- and loss-framed appeals for encouraging skin cancer prevention.

The relative persuasiveness of gain- and loss-framed messages for promoting vaccination: a meta-analytic review.

Vaccination against disease is a powerful public health tool, and persuading people to be vaccinated is a correspondingly important challenge. A number of studies have compared the effectiveness of gain-framed and loss-framed appeals in this domain, often expecting gain-framed appeals to be more persuasive. A meta-analytic review (k = 32, N = 11,814), however, finds no significant difference in the persuasiveness of gain- and loss-framed appeals for encouraging vaccination.

The relative persuasiveness of gain-framed and loss-framed messages for encouraging disease prevention behaviors: a meta-analytic review.

A meta-analytic review of 93 studies (N = 21,656) finds that in disease prevention messages, gain-framed appeals, which emphasize the advantages of compliance with the communicator's recommendation, are statistically significantly more persuasive than loss-framed appeals, which emphasize the disadvantages of noncompliance. This difference is quite small (corresponding to r = .03), however, and appears attributable to a relatively large (and statistically significant) effect for messages advocating dental hygiene behaviors.

Narrative communication in cancer prevention and control: a framework to guide research and application.

Narrative forms of communication-including entertainment education, journalism, literature, testimonials, and storytelling-are emerging as important tools for cancer prevention and control. To stimulate critical thinking about the role of narrative in cancer communication and promote a more focused and systematic program of research to understand its effects, we propose a typology of narrative application in cancer control. We assert that narrative has four distinctive capabilities: overcoming resistance, facilitating information processing, providing surrogate social connections, and addressing emotional and existential issues.