16 pages., Via online journal., This study explores potential factors that lead to environmental opinion leadership behaviors such as informing the public about environmental issues and encouraging preventative behaviors among various social groups. Building on the theoretical framework of the diffusion of innovations model, these analyses explore the effects that mass media may have on perceptions of self-efficacy among opinion leaders and how self-efficacy may, in turn, encourage leaders to communicate about aquatic invasive species (AIS) to others in their social networks. Results indicate that mass media and governmental media can have both a positive and negative influence on levels of self-efficacy, and that opinion leaders with higher levels of self-efficacy are more likely to participate in behaviors that could potentially influence their social network(s). These findings not only highlight factors that influence opinion leadership regarding advocacy of environmental behaviors, but also offer insights as to how future campaigns can work with these groups to promote prevention strategies.
17 pages., Lab grown meat is a new technology being developed as a potential alternative protein source. Although some research has been done about public perception of lab grown meat, no studies to date have observed the effects of message themes on public perception of lab grown meat. The study sought to better understand measures of uncertainty and risk and benefit perceptions after viewing a themed blog post about lab grown meat. Participants were randomly assigned one of three themed blog posts - against lab grown meat, neutral, or support lab grown meat. Perception questions were asked after viewing the blog post, and a total of 238 responses were collected. Results indicated the message theme had a statistically significant effect on risk perception, benefit perception, and intention to consume, but not on message evaluation or measures of uncertainty. Further discussion as well as suggestions for future research are included.
28 pages, via online journal, While uncertainty is central to science, many fear negative effects of communicating scientific uncertainties to the public, though research results about such effects are inconsistent. Therefore, we test the effects of four distinct uncertainty frame types (deficient, technical, scientific, consensus) on three outcomes (belief, credibility, behavioral intentions) across three science issues (climate change, GMO food labeling, machinery hazards) with an experiment using a national sample (N = 2,247) approximating U.S. census levels of age, education, and gender. We find portraying scientific findings using uncertainty frames usually does not have significant effects, with an occasional exception being small negative effects of consensus uncertainty.
