Research

Although an increasing amount of aggressive and polarized tweets about climate change are being observed, little is known about how they spread on Twitter. This study focuses on how different types of network gatekeepers use aggressive styles and how the styles affect their propagation. The current study employed a computational method and identified 951 influential accounts from 7.25 million tweets about climate change in 2019 and 2020. We analyzed their use of aggression and politicized cues, and the relationship with the volume of retweets. Results showed that even though aggressive tweets were a small portion of the overall tweets about climate change, aggressive tweets were more likely to be politicized and retweeted. Specifically, aggressive tweets from politicians received the most retweets and news media amplified the aggression. The findings of this study build upon the current knowledge of the use of aggression online and provide practical implications for environmental communicators.

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.

The current study investigated how individuals process aggressive and humorous video messages communicating childhood vaccination and climate change. Employing psychological reactance, message discounting and expectancy violation, we built a theoretical model that explains the effects of communication styles on individuals’ activism intentions. Two online experiments in the United States (N = 441 and N = 533) using self-created videos on the topics of childhood vaccination and climate change were conducted to examine this model. The results showed that both perceived aggressiveness and humorousness of the videos led to higher message discounting, which then resulted in stronger activism intentions. Perceived aggressiveness led to higher expectancy violation, while perceived humorousness led to lower expectancy violation, which negatively affected activism intentions. The role played by psychological reactance was inconsistent across the two contexts. The findings provide theoretical implications for understanding how individuals process aggressive and humorous communication styles, especially in relation to discussions on science issues.

We have witnessed an increasing amount of science podcasts, and it has emerged as an important venue for science communication. From a strategic science communication perspective, this study investigated how science podcasters view science communication–related goals and objectives, as well as the tactics they use in producing science communication content based on the theory of planned behavior. A survey (N = 147) with science podcasters showed that they see excitement and interest in science as their most prioritized objective and present the value of science over time. In addition, our results showed that podcasters frequently use communication tactics, but it may not have resulted from planned strategic communication action. The findings of this study provide initial insight into podcasters’ views and practice as part of the science communication effort.

This study investigated how communication scholars view scientists’ public engagement as well as differences between how these scholars and natural and physical scientists think about the topic. The study used surveys of authors who recently published in five journals related to science communication alongside surveys of scientists from three prominent professional science societies. The results suggest that communication scholars (N = 362) shared some views with the scientists (N = 307, 373, 372) regarding scientists’ performance, factors that influence engagement activities, and communication objectives, but potentially important differences were observed as well. Scientists have more positive beliefs about engagement norms and also rate their engagement efficacy relatively high. But communication scholars have higher expectations for online engagement amount. The findings address gaps in perceptions and performances from these two communities and suggest areas of potential emphasis for science communication training.

Science communicators who explicitly seek to achieve specific outcomes and goals efficiently and effectively are engaged in strategic science communication. The current study used qualitative interviews to explore how science bloggers view and practice strategic science communication. Interviews with 20 science bloggers who cover various scientific topics suggest that many science bloggers actively apply a range of techniques in their writing but vary in the degree to which they are strategic in using these techniques to try to achieve specific communication outcomes. The findings highlight the value of science blogs in terms of their potential to have a collective and cumulative impact on audiences and provide a window to the future development of online science communication, particularly in areas of objective setting.

This study explored the effects of COVID-19 vaccine promotion messages highlighting the benefit at individual, community, and country levels. Based on the cultural theory of risks, we investigated how individuals’ valuation of individualism vs. communitarianism and hierarchical vs. egalitarian social structure affect their responses to vaccine messages.

This study develops an issue-driven framework to theorize the role of public attention, support, and expectations in audience responses to corporations’ engagement in contested issues. Based on a mixed-method study using an online survey (N = 817), we investigate how two forms of expectations—normative and predictive—are associated with motivating cognitions, attitudes toward the social impacts of corporate sociopolitical activism (CSA), and buying intentions. Thematic analysis reveals a four-quadrant typology characterized by varying degrees of public attention and support: legitimate engagement, identify alignment, emergent norm, and obscure practice. The structural equation modeling results demonstrate that predictive expectations are a consistent antecedent to the perceived company–issue fit, perceived issue salience, and issue position. In contrast, the associations between normative expectations, the perceived company–issue congruence, and cognitive involvement are contingent on issue types. Perceived advocacy fit and cognitive involvement positively predict attitudes toward the social impacts of CSA. Buycotting intentions, however, are only determined by individuals’ issue position.

In the past few years, expenditure on influencer marketing has grown exponentially. The present study involves preliminary research to understand the mechanism by which influencer marketing affects consumers via social media. It proposes an integrated model—the social media influencer value model—to account for the roles of advertising value and source credibility. To test this model, we administered an online survey among social media users who followed at least one influencer. Partial least squares (PLS) path modeling results show that the informative value of influencer-generated content, influencer’s trustworthiness, attractiveness, and similarity to the followers positively affect followers’ trust in influencers’ branded posts, which subsequently influence brand awareness and purchase intentions. Theoretical and practical implications are discussed.