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As social media become increasingly important for science communication, scientists are grappling with their new role on these platforms. While some have called for the increased presence and training of scientists on social media, others prefer to leverage the influence of social media influencers for science communication. This study explores the effects of source identity (scientist or influencer) and self-disclosure type (personal or professional) on perceptions of authenticity and expertise, as well as parasocial interactions. In an online between-subjects experiment (N = 1579), participants rated scientists on Twitter as more authentic and qualified than influencers, and rated Twitter profiles with professional self-disclosure as more qualified than profiles with personal self-disclosure. Subsequently, participants indicated stronger parasocial interactions, higher information-seeking intentions, and higher prosocial intentions. Anti-intellectualism was found to moderate these relationships. These findings suggest that scientists can employ certain strategies as they seek to establish themselves and reach wider audiences on social media platforms. [ABSTRACT FROM AUTHOR]

As the COVID-19 pandemic continues to inflict damage throughout the world, some minority groups are bearing a disproportionate share of its impacts. We concentrated on one such group, U.S.-dwelling Chinese, who have had to cope with challenges related to acculturation, health, safety, and racism. Recognizing that health information seeking was an essential step in helping maintain and improve health behaviors, we conducted a two-wave longitudinal study (N = 1,284) to examine the various factors predicting U.S.-dwelling Chinese's use of U.S. and Chinese media for COVID-19 information as well as the consequences of their information seeking. Overall, we found that acculturation, accuracy (i.e., information insufficiency) and defense (i.e., conspiratorial beliefs) motivations, trust in media, and perceived information gathering capacity played a key role in explaining information seeking from an intercultural viewpoint, and that the use of U.S. and Chinese media was associated with different health behaviors. These findings contribute to theory and practice in a variety of ways. [ABSTRACT FROM AUTHOR]

How do religious affiliation and beliefs shape vaccine attitudes and behaviors? This study examined the associations of attitudes and behaviors relevant to the flu, measles-mumps-rubella (MMR), and human-papillomavirus (HPV) vaccines with religious affiliations, as well as philosophical, spiritual, and moral beliefs. Respondents were 3005 adults from a probability-based, four-wave panel survey in the United States. Longitudinal structural equation modeling examined how religious affiliations and philosophical/moral beliefs shaped attitudes toward vaccines and actual vaccination. Stronger philosophical beliefs predicted more negative attitudes toward each vaccine and stronger moral beliefs more negative attitudes toward the HPV vaccine. Negative vaccine attitudes then predicted weaker intentions to encourage others to vaccinate and lower probability of receiving a vaccine. Theoretical and public health messaging implications are discussed. [ABSTRACT FROM AUTHOR]

Repeated exposure and its associated fatigue are key obstacles to engagement that remain insufficiently addressed for climate change communication. To explore this issue, this study randomly assigned U.S. adults (N = 933) to one of five experimental conditions (number of polar bear news headlines: 0 vs. 1 vs. 3 vs. 7 vs. 10), in which they were exposed to a total of 20 news headlines in a brief amount of time. Overall, this study did not find evidence supporting the inverted-U shaped model concerning repeated exposure. In addition, chronic message fatigue played a moderating role such that for those with high chronic message fatigue, even one brief exposure resulted in stronger acute message fatigue, which was associated with lower compassion and weaker willingness to help polar bears and support climate change mitigation. Discussions on these exploratory results and implications for audience segmentation are provided. [ABSTRACT FROM AUTHOR]

This study explores the effects of two humor styles—pure humor and satire—on audiences' Twitter engagement intentions as well as their attitudes toward mRNA Covid-19 vaccines. In an online between-subjects experiment (N = 484), these styles were embedded within a scientist's tweet about the vaccines. The results showed that, compared to a no humor tweet, both pure humor and satire increased audience's expectancy violation, subsequently decreasing both outcomes. Superiority as an individual trait also moderated the relationship between humor styles and both expectancy violation and Twitter engagement. These findings broaden our understanding of different humor styles in science communication on Twitter. [ABSTRACT FROM AUTHOR]

The current study examined the effects of aggressive communication styles on individuals' pro-environmental behavioral intentions. Two underlying mechanisms—psychological reactance and expectancy violation—as well as the moderating role played by political ideology were investigated. An online experiment (N = 423) was conducted and the results showed that more aggressive style was more likely to trigger psychological reactance and violation of expectation, liberals responded more negatively to the aggressive message than conservatives, and expectancy violation was an important mediator. The findings provide explanations for how communication styles affect individuals' information processing and offer implications regarding selecting communication styles wisely. [ABSTRACT FROM AUTHOR]

The order in which individuals receive information about wildlife may influence their attitude toward wildlife differently. We explored order effects of a threat message that induced more fear versus a suffering message that elicited more compassion on attitude toward wildlife. Specifically, we focused on bats, a risk-laden species also suffering massive mortalities due to a disease affecting bat populations across the United States. We randomly assigned 1,506 U.S. adults to one of eight message conditions as part of a 2 (message order: suffering → threat vs. threat → suffering) × 2 (suffering messages) × 2 (threat messages) between-subjects factorial design or a control (no message) condition. We found a significant two-way interaction between message order and biospheric values on attitude toward bats. For people with high biospheric values, reading a suffering message first led to a more positive attitude than reading a threat message first, whereas reading a threat message first led to a more positive attitude than reading a suffering message first for people with low biospheric values. Compassion but not fear mediated these effects. Theoretical and practical implications are provided. [ABSTRACT FROM AUTHOR]

In response to the recent sea star wasting disease event and the growing concern over the negative consequences of eco-depression regarding environmental crises, this study investigated the effects of two emotional appeals (sadness and hope) and their interaction with gain versus loss framing on information seeking, policy support, and pro-environmental behavioral intentions. Overall, the results suggest that the sadness appeal was an effective approach in promoting information seeking and policy support, whereas the impacts of the hope appeal were limited in this context. In addition, this study provides initial evidence that a sadness appeal will be more effective when it is accompanied by gain framing and that a hope appeal tends to have greater impacts when it is juxtaposed with loss framing. Future implications and limitations are also discussed. [ABSTRACT FROM AUTHOR]