Abstract: Successful COVID-19 vaccine promotion for the unvaccinated relies on increasing positive reactions but also reducing negative responses to persuasive messages. The current study examined the relative effects of narrative vs. non-narrative public service announcements (PSAs) promoting COVID-19 vaccination on both positive and negative reactions. We explored the role of empathy and psychological reactance as underlying mechanisms. Results of an experiment involving unvaccinated young adults indicate that the narrative (vs. non-narrative) PSAs led to greater empathy. While no direct effects of message type emerged on psychological reactance or vaccination intention, results of a serial multi-mediator model confirmed that empathy and psychological reactance mediated the effects of message type on vaccination intention, yielding theoretical and practical implications for research and practice in COVID-19 vaccination and health communication.
Abstract: To close existing research gap and combat vaccine hesitancy among young adults, we conduct this study to integrate psychological reactance theory to better understand the effectiveness of three emerging yet understudied emotional appeals (i.e., guilt, shame, and pride) in health risk context. The current research has two goals: (1) to examine how different emotional appeals (guilt vs. shame vs. pride) and user-generated comments toward COVID-19 vaccine messages independently or interactively affect psychological reactance and (2) to understand the mediating role of psychological reactance between emotional appeals and user-generated comments and desired behavioral outcomes. An experimental study with 3 (guilt vs. shame vs. pride) by 2 (positive-valenced comments vs. negative-valenced comments) between-subjects factorial design will be conducted with college students (aged 18-24) at a large public university in the United States. Our findings strengthen the theoretical foundation on how health risk messages with user-generated comments interactively can predict undesired health outcomes. Our study also helps health organizations design more effective messages targeting at young adults by lowering psychological reactance and enhancing persuasive power in motivating COVID-19 vaccination.
Abstract: This study examined if and how Facebook user-generated comments about the flu vaccine influenced psychological reactance in conjunction with pre-existing flu vaccine attitude. Psychological reactance was further tested as a mediating factor influencing behavioral intention to receive the vaccine. An experimental study was conducted with 264 college students. The results showed that pre-existing attitude positively influenced participants’ intention to obtain the flu vaccine through an increase (a decrease) in psychological reactance when there was inconsistency (consistency) between the pre-existing attitude and valence of comments. Collectively, the results demonstrate that psychological reactance is one possible theoretical mechanism through which social media users’ health behaviors are influenced by user-generated comments.