Perceived behavioral control as a moderator: Scientists' attitude, norms, and willingness to engage the public.

Scientists play important roles in conducting public engagement, but evidence shows that scientists perceive great challenges in doing so. Drawing broadly from the theory of planned behavior (TPB), this study examines factors predicting scientists' willingness to conduct public engagement. This study further examines how perceived behavioral control (PBC) of conducting public engagement would moderate the relationships between the proposed predictors and scientists' willingness to conduct public engagement. Using survey data collected from 706 scientists based in Singapore, this study found that attitude toward and personal norms of conducting public engagement, as well as PBC, significantly predicted scientists' willingness to conduct public engagement. Notably, PBC interacted with attitude toward conducting public engagement, the perceived descriptive norms, the perceived positive media influence, and the perceived negative external norms of conducting public engagement, as well as personal norms of conducting public engagement to predict scientists' willingness to conduct public engagement. We postulated the key role that the perception of the ease or difficulty plays in motivating scientists to conduct the skill-intensive endeavor explains the significant moderating effects. The theoretical implications on the TPB and the practical implications for public engagement are further discussed.

Fake news, real risks: How online discussion and sources of fact-check influence public risk perceptions toward nuclear energy.

This study seeks to understand how online discussion, fact-checking, and sources of fact-checks will influence individuals' risk perceptions toward nuclear energy when they are exposed to fake news. Using a 2 × 3 experimental design, 320 participants were randomly assigned to one of the six experimental conditions. Results showed an interaction effect between online discussion and exposure to fact-checking, in which online discussion lowered individuals' risk perception toward nuclear energy when a fact-check was unavailable. Of those who participated in the online discussion, those who viewed a fact-check posted by traditional media have higher risk perception as compared to those who viewed a fact-check posted by a fact-check organization. Our findings indicate that different fact-checking sources can have differential effects on public risk perceptions, depending on whether online discussion is involved. To curb the spread of fake news, different fact-checking strategies will need to be deployed depending on the situation.

Thinking, not talking, predicts knowledge level: Effects of media attention and reflective integration on public knowledge of nuclear energy.

By applying the cognitive mediation model, this study seeks to investigate factors influencing public knowledge of nuclear energy in Singapore. In addition, this study seeks to extend the cognitive mediation model by explicating the knowledge variable into four facets - general science knowledge, perceived familiarity, content nuclear knowledge and contextual nuclear knowledge. Using data collected from an interviewer-led door-to-door survey with 1000 Singapore citizens and permanent residents (PRs), we found that attention to TV news, website news and social media news stimulated news elaboration and interpersonal discussion. However, attention to print newspaper was neither associated with news elaboration nor interpersonal discussion. We also found that news elaboration could enhance factual knowledge such as general science knowledge, content nuclear knowledge and contextual nuclear knowledge, while interpersonal discussion could enhance perceived familiarity. Theoretical and practical implications are discussed.