Trust in expert versus lay comments in online articles about spanking and car seat safety

In this study, we experimentally examined parents' perceptions of scientific information about spanking, a controversial topic, and car seat safety, a consensus topic, presented in online news articles. Specifically, we tested whether parents of children ages 2 to 8 years would trust scientific experts (speaking from professional expertise) more than online lay commenters (speaking from personal experience). One hundred and eighty parents across 41 U.S. states were recruited online from Amazon's Mechanical Turk (124 mothers, 56 fathers; 74% White, 9% Black, 8% Latino, 8% Asian, and 1% other or multiple ethnicities). Parents were randomly assigned to read a news article with an expert discussing spanking research that varied by two conditions: The news article contained either anti-spanking lay comments or pro-spanking lay comments. All parents also read a second news article on car seat safety (a consensus topic). Between-condition analyses were used to compare perceptions of the comment conditions, and within-condition analyses were used to compare perceptions of the expert knowledge versus the comments and to compare perceptions of the spanking expert versus the car seat expert. Moderation analyses were used to compare parents' perceptions based on their attitudes toward spanking. Parents with positive attitudes toward spanking recognized pro-spanking comments as opinion, yet still found them more trustworthy than a scientist taking the opposite position. All parents perceived the car seat expert as trustworthy. The results highlight challenges in disseminating information about controversial topics to the public. (PsycInfo Database Record (c) 2021 APA, all rights reserved).