Do Perceived Message Effectiveness Ratings Change in Response to Repeated Message Exposures?

ABSTRACT: Perceived message effectiveness (PME) is used in message pre-testing and as an indicator of campaign receptivity. Studies have yet to examine whether PME changes in response to repeated exposures to messages and whether the pattern of change differs for effects perceptions (i.e., perceived impact of messages on intended outcomes) versus message perceptions (i.e., judgments of a message's ability to foster message processing). To address these gaps, we conducted a 3-week randomized clinical trial (RCT) with parallel assignment among 1,514 US adolescents aged 13-17 years who were susceptible to vaping or used e-cigarettes in the past 30 days. Repeated exposures to vaping prevention video ads over time increased both effects perceptions (p < .001) and message perceptions (p < .0

SUBMITTER: Jang Y 

PROVIDER: S-EPMC12353103 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature