Effectiveness of video-based health promotion: A systematic review and meta-analysis.

BACKGROUND: Although health promotion scholars and practitioners frequently employ video-based promotion, its effectiveness remains uncertain due to mixed findings. Nuanced details regarding content and design also remain under-explored. METHODS: We conducted a comprehensive search across nine databases to identify relevant empirical research articles. RESULTS: Our systematic review included a total of 54 studies, with 38 studies eligible for meta-analysis. Findings highlight the promising potential of video messaging strategies in promoting health behaviors. CONCLUSIONS: Future research should focus on designing video content that targets detection behaviors within an appropriate length, guided by robust theoretical frameworks to maximize the efficacy of video promotion. More substantial evidence is needed to assess whether video promotion can achieve similar persuasive effectiveness across diverse cultural, political, and economic circumstances. Factors related to the audience (e.g., distinct psychological and personality influences) and message characteristics (e.g., length, credibility) should be further explored to better elucidate the relationship between video-based health promotion and health outcomes. PRACTICE IMPLICATIONS: Health practitioners and organizations should incorporate video-based messages in interventions as supplement or alternative means to educate audiences of positive prevention methods, establish accurate attitude and intentions toward prevention behaviors, and increase their vigilance toward risky behaviors.

Narrative versus statistical messages: The interplay of perceived susceptibility and misperceptions on vaccine intention.

Although there is enough scientific evidence to show the benefits and safety of vaccines, vaccine rates are low, while misperceptions about vaccines are on the rise. The main purposes of the current study are to 1) examine the effects of narrative vs. statistical messages on vaccine intention, 2) test the mediating role of perceived expectancies, and 3) examine the moderating roles of perceived susceptibility and misperceptions on vaccine intention. Data were collected with an online experiment through Amazon Mturk. The online experiment was conducted via Qualtrics once the study was considered exempt by the Institutional Research Board of a large University in the U.S. A total of 300 participants aged 18 and above completed the survey. Findings show that perceived expectancies mediate the relationship between message manipulation and vaccine intention. Our findings also show a three-way interaction which indicates that among individuals with high misperceptions, statistical messages are more persuasive for individuals with high perceived susceptibility, while narrative messages are more influential for individuals with low perceived susceptibility.

A Story is Better Told With Collective Interests: An Experimental Examination of Misinformation Correction During the COVID-19 Pandemic.

PURPOSE: To examine strategies that help motivate social correction behaviors to combat COVID-19-related health misinformation on social media. DESIGN: 2 (message types: narrative vs statistics) x 2 (social frames: individual vs collective) between-subjects experiment. SETTING: Qualtrics-based online experiment via Lucid. SUBJECTS: The final sample consisted of 450 participants (Mage = 45.31). MEASURES: Manipulation check, discussion and correction intentions, and need for cognition (NFC). ANALYSIS: ANCOVA and PROCESS model 3 were used to analyze the data. RESULTS: Significant interaction effects emerged between message types and social frames on discussion intention, F (1, 442) = 5.26, P = .022, and correction intention, F (1, 442) = 4.85, P = .028. Collectively framed narrative correction (Mdiscussion = 3.15, Mcorrection = 3.17) was more effective than individually framed narrative correction (Mdiscussion = 2.73, Mcorrection = 2.77). Individually framed statistical correction (Mdiscussion = 3.10, Mcorrection = 2.95) was more persuasive than collectively framed statistical correction (Mdiscussion = 2.89, Mcorrection = 2.69). The interaction effects were more evident for people low on NFC, P = .031. CONCLUSION: In motivating social correction behaviors, a story is better told with an emphasis on collective interests, and numbers are better presented with personal gains and losses. Future interventions should identify the target audience based on the level of NFC.

Not doomed: Examining the path from misinformation exposure to verification and correction in the context of COVID-19 pandemic.

Misinformation exposure has attracted growing scholarly attention. While much research highlights misinformation exposure's negative impacts, this study argues that its positive effects should also be noted. By using a more precise measurement of misinformation exposure and a path model, this study outlines a path from misinformation exposure to anti-misinformation behaviors, partially mediated by misperceptions in the context of COVID-19. Findings indicate that exposure to popular but widely-denounced COVID-19 misinformation via social media had positive effects on verification intention. Frequent exposure to misinformation on social media is associated with lower misperceptions, suggesting a healthy dose of skepticism toward the platform and low internalization of misinformation. Special attention, however, needs to be paid to online news websites and personal contacts as misinformation sources. More tailored interventions and communication strategies to reduce misperceptions and increase media-literate behaviors are needed for younger, conservative, and ethnic minority individuals. Theoretical and practical implications are further discussed.

Narrative Messages, Information Seeking and COVID-19 Vaccine Intention: The Moderating Role of Perceived Behavioral Control.

PURPOSE: The main purposes of the current study are to examine 1) the influence of narrative vs statistics messages on COVID-19 related information seeking and COVID-19 vaccine intention and 2) the moderating role of perceived behavioral control (PBC). DESIGN: Data for a between-subject randomized experiment were collected online. The manipulation messages were presented as screenshots from the CDC's Facebook page. SETTING: The participants were recruited from Amazon MTurk. SUBJECTS: A total of 300 subjects participated in the study, who were 18 years and above (M = 38.40). MEASURES: Intention to seek information, COVID-19 vaccine intention, and PBC. ANALYSIS: To test the hypotheses, we utilized Hayes's (2014) PROCESS for SPSS (Model 1). For intention to seek information, the main effect of the message manipulation (narrative vs statistics) [b = -2.10, t (300) = -4.14, P < .001] and the interaction [b = .41, t (300) = 3.88, P < .001] were significant. For vaccine intention, the main effects of message manipulation [b = 1.64, t (300) = -2.61, P < .005] and the interaction [b = .34, t (300) = 2.64, P < .005] were significant. RESULTS: Our research found that narrative messages were more persuasive for both information seeking and vaccine intention. But this was true only in the case of individuals whose PBC was low. CONCLUSIONS: Our findings have critical implications for vaccine promotion research.

"I enjoy thinking critically, and I'm in control": Examining the influences of media literacy factors on misperceptions amidst the COVID-19 infodemic.

Misinformation circulation has arguably reached a peak during the COVID-19 pandemic, creating an "infodemic" that severely endangers public health and well-being. Using a moderated mediation model, a survey of 712 respondents from China reveals that social media information seeking is positively associated with COVID-19 misperceptions, while need for cognition (NFC) is negatively associated with it. Both relationships became more significant while mediating through individuals' general misperceptions. Moreover, it is found that among those with greater locus of control over media, the association between social media information seeking and COVID-19 misperceptions became more positive, while the association between NFC and COVID-19 misperceptions became more negative among those with greater media locus of control. Findings provide insights into the misperception research and have practical implications regarding infodemic management.

Who endorses conspiracy theories? A moderated mediation model of Chinese and international social media use, media skepticism, need for cognition, and COVID-19 conspiracy theory endorsement in China.

During the COVID-19 pandemic, various conspiracy theories have been circulating through social media platforms. Scholars have raised concerns about the negative ramifications of conspiracy theories, such as the deterrence of preventive measures. Against this backdrop, the current study analyzed an online survey (N = 731) from China and examined the conditional indirect effects of Chinese and international social media use on conspiracy theory endorsement (CTE) regarding COVID-19. Findings showed that Chinese social media use was not associated with CTE, while international social media use was negatively associated with CTE. Moreover, the significant association was mediated by media skepticism. Further, individuals' level of need for cognition (NFC) was found to moderate the indirect effect. That is, among people with higher levels of NFC, the negative indirect effect of international social media use on CTE became stronger. Theoretical and practical implications were discussed.

Integrating Reasoned Action Approach and Message Sidedness in the Era of Misinformation: The Case of HPV Vaccination Promotion.

Building upon extant research on the reasoned action approach and message sidedness, this study investigates the persuasive effects of one-sided and two-sided social media messages on the attitude about human papillomavirus (HPV) vaccination in the context of misinformation. Results of a controlled experiment (N = 251) indicated that compared to the control, one-sided messages addressing misinformation increased positive attitude about the vaccine as prior misperceptions increased. However, a backfire effect may be looming for individuals with lower prior misperceptions. Within the sidedness conditions, refutational two-sided messages were more effective in increasing cognitive attitude for individuals with lower misperceptions; whereas one-sided messages had a persuasive advantage for individuals with higher misperceptions. Theoretical and practical contributions are discussed.

The Impact of Theory in HPV Vaccination Promotion Research: A Systematic Review and Meta-Analysis.

OBJECTIVE: Numerous studies examined HPV vaccination promotional strategies. However, an overview of theory use, a synthesis of strategies' effectiveness and an examination of the moderating influence of theory are absent. DATA SOURCE: We retrieved studies from Academic Search Complete, Business Source Complete, PubMed, PsycINFO, Web of Science, CMMC, CINAHL, and MEDLINE. STUDY INCLUSION AND EXCLUSION CRITERIA: 1) peer-reviewed articles written in English, 2) experimental or quasi-experimental, 3) measure HPV vaccination-related outcomes, 4) had to contain a control condition and report statistics necessary for conversion (for meta-analysis only). DATA EXTRACTION: 70 and 30 studies were included for the systematic review and meta-analysis respectively. DATA SYNTHESIS: Four major categories were coded: study information, theory use, type of theory, and outcomes. Two independent coders coded the sample (Cohen's Kappa ranged from .8 to 1). RESULTS: Most of the studies were based in the U.S. (77%, k = 54) with convenient samples (80%, k = 56), targeted toward females (46%, k = 32), and around a quarter did not employ any theories (47%, k = 33). Among theory-driven studies, the most commonly used were Framing (22%, k = 19), Health Belief Model (HBM; 13%, k = 12), and Narrative (7%, k = 6). Among controlled studies, promotional strategies were significantly more effective compared to the control (r+ = .25, p < .001). Strategies guided by the information, motivation, behavioral skills model (IMB) were more effective (r+ = .75, p < .001) than studies guided by framing theory (r+ = -.23, p < .001), HBM (r+ = .01, p < .001), and other theories (r+ = .11, p < .001). CONCLUSION: This review contributes to HPV vaccination promotion literature by offering a comprehensive overview of promotional strategies and practical suggestions for future research and practices.

The dangers of blind trust: Examining the interplay among social media news use, misinformation identification, and news trust on conspiracy beliefs.

Since the beginning of the COVID-19 pandemic, misinformation has been circulating on social media and multiple conspiracy theories have since become quite popular. We conducted a U.S. national survey for three main purposes. First, we aim to examine the association between social media news consumption and conspiracy beliefs specific to COVID-19 and general conspiracy beliefs. Second, we investigate the influence of an important moderator, social media news trust, that has been overlooked in prior studies. Third, we further propose a moderated moderation model by including misinformation identification. Our findings show that social media news use was associated with higher conspiracy beliefs, and trust in social media news was found to be a significant moderator of the relationship between social media news use and conspiracy beliefs. Moreover, our findings show that misinformation identification moderated the relationship between social media news use and trust. Implications are discussed.

Do Norms Matter? Examining Norm-Based Messages in HPV Vaccination Promotion.

This research examines the influence of norm-based messages (positively worded descriptive vs. negatively worded descriptive vs. injunctive vs. basic information) on intentions and risk perceptions about receiving human papillomavirus (HPV) vaccination among young adults aged 18-29. Results from an experiment show that compared to the basic information condition, additional exposure to injunctive normative messages increased intention to seek further information about HPV vaccination, which in turn enhanced intention to get the vaccine. Negatively worded descriptive normative messaging should be used with caution since it resulted in the highest risk perceptions of the HPV vaccine, compared to positively worded descriptive norms and basic information messages. Theoretical and practical implications are further discussed.

Vaccine hesitancy and perceived behavioral control: A meta-analysis.

OBJECTIVES: The World Health Organization recognizes that vaccine hesitancy is a top threat to the public health. To address vaccine hesitancy, much research guided by behavioral theories attempted to examine factors that contribute to vaccination intentions. The current study synthesizes the summary effects of attitude, norms and perceived behavioral control on vaccination intentions. METHODS: We searched five databases with relevant keyword combinations without time constraints. A sample of 5149 participants was included for final analysis. RESULTS: Attitude, norms and perceived behavioral control were significant predictors of vaccination intentions with attitude being the strongest. Type of recipient significantly moderated the PBC-intention relationship, while norm-intention correlations were significantly moderated by type of norm measures. Formative belief elicitation research had no moderating influences. CONCLUSION: Our findings demonstrate clear support for the utility of theory of planned behavior in explaining vaccine hesitancy. Research is needed on how interventions can change these constructs to motivate vaccination.

A Social Networks Approach to Understanding Vaccine Conversations on Twitter: Network Clusters, Sentiment, and Certainty in HPV Social Networks.

Individuals increasingly rely on the Internet, and social media in particular, for health-related information. A recent survey reports that 80% of Internet users search for health information online. In the present study, we employ Twitter data to understand content characteristics and the patterns of content flow of the conversations about the HPV vaccine debate. Approaching the HPV vaccine conversations on Twitter as a social network, we can identify key self-formed subgroups-clusters of users who create "siloes" of interactions and information flow. Combining network analysis, computer-aided content analysis, and human-coded content analysis, we explored the communication dynamics within the groups in terms of group members' affective and cognitive characteristics. Our findings show that positive emotion is positively correlated with cluster density, an indicator of strong ties and rapid information flow. In the case of negative emotion, we found that anger is a significant negative predictor for graph density. We also found a correlation between certainty and tentativeness; both at cluster as well as at tweet level, suggesting that clusters bring together people who are sure about the HPV vaccine and people who are exploring for answers.

The Importance of 'Likes': The Interplay of Message Framing, Source, and Social Endorsement on Credibility Perceptions of Health Information on Facebook.

Online sources not only permeate the information-seeking environment of the younger generation, but also have profound influence in shaping their beliefs and behaviors. In this landscape, examining the factors responsible for credibility perceptions of online information is fundamental, particularly for health-related information. Using a 2 (frames: gain vs. loss) × 2 (source: expert vs. non-expert) × 2 (social endorsement: high vs. low) randomized between-subjects experimental design, this study examines the effect of health message framing and the moderating effects of social endorsement and source type on credibility perceptions of Facebook posts. Testing across two issues--physical activity and alcohol consumption--findings indicate that the gain-framed message was perceived as most credible. Additionally, significant three-way interactions suggest that social endorsement and source type affect the relationship between message framing and credibility perceptions. Specifically, the findings demonstrate that a gain-framed message from an expert source with high number of 'likes' is considered the most credible message. These findings have significant implications for information gathering from social media sources, such as the influence of 'likes' on health information.