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In the context of climate change communication, this study explores the process through which exposure to media messages about a risk leads to recommended behavioral intentions. We propose a model of this process based on the Extended Parallel Process Model (EPPM) and the Risk Perception Attitude (RPA) framework. Our model analyzes how risk perception, negative emotion, and efficacy beliefs mediate and moderate the effects of media messages on people's intention to engage in pro-environmental behaviors. A national survey among 1,000 adults in South Korea was analyzed, and the fitting of PROCESS Models 4 and 15 yielded four main findings. First, media exposure was directly and positively related to risk perception, negative emotion, and pro-environmental behavioral intention. However, the significant relation between media exposure and behavioral intention was partly conditional upon efficacy beliefs. Second, risk perception and negative emotion were also significantly related to behavioral intention conditional upon efficacy beliefs. Third, efficacy beliefs significantly moderated the relation between risk perception and behavioral intention, but not between negative emotion and behavioral intention. Fourth, efficacy beliefs served as a moderator for the indirect effect of media exposure on behavioral intention via risk perception and negative emotion.

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This study analyzes the mechanisms through which risk messages about climate change lead to people's risk information-sharing intention, and how digital media platform type serves as a context that moderates those mechanisms. Our analysis is informed by the influence of presumed influence (IPI) model, and we adapt and expand that model in three ways. First, we apply the concept of perceived media reach to the context of digital media platforms, specifically news aggregators and social networking sites. Second, we integrate the two mediators of risk perception and presumed influence. Third, we examine potential moderating roles of digital media platforms in the IPI model. An online survey was conducted among 1000 South Korean adults, and a moderated mediation model (PROCESS Macro Model 59) generated the following results. (1) Perceived media reach was positively related to both mediators-risk perception and presumed influence. (2) By way of those two mediators, perceived reach significantly led to information-sharing intention. (3) Presumed influence, but not risk perception, was significantly related to information-sharing intention. (4) Digital media platforms moderated the relation between perceived reach and risk perception: the role of content-related risk perception was more pronounced in news aggregators, while the role of context-related presumed influence was greater in social networking sites. Theoretical and practical implications for risk communication are discussed.

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This article introduces and applies an integrative model of cyberharassment victimization. The model combines routine activity theory (RAT), the general theory of crime (GTC), and the personal resources approach to analyze risk factors for victimization while acknowledging the protective role of a sense of mastery. Survey respondents were aged 15 to 25 years (N = 4816) from the U.S., Finland, Spain, and South Korea. Logistic regression models were used to analyze cyberharassment victimization. RAT-related factors were positively associated with cyberharassment victimization. Low self-control was positively associated with cyberharassment victimization in the U.S., Finland, and Spain but not in South Korea. The sense of mastery was negatively associated with cyberharassment victimization in the U.S., Finland, and South Korea but not in Spain. Protective factors against cyberharassment victimization should be utilized in future studies as adequate knowledge of protective factors could assist policymakers in generating preventative measures against cyberharassment. Our study demonstrates the benefits of integrating criminological theories and protective factors in studies using cross-national data to gain a better understanding of the dynamics of cyberharassment.

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Background: South Korea was one of the first countries to experience a large outbreak of COVID-19. Early on, public health authorities recommended mask wearing as one of the main preventive measures against the virus. Compared to people in other countries, most South Koreans were willing to follow this recommendation. However, during the early stages of the pandemic, panic buying and vendor hoarding led to a nationwide mask shortage. The problem that needed to be solved was not to change the public's behavior but rather to make masks more available to them. Case description: To stabilize mask supply and demand, the South Korean government implemented a distribution system that limited mask purchases to two per person per week, in a 5-day rotation determined by birth year. The places designated for selling masks included pharmacies, post offices, and marts that had access to data about registered South Korea residents who had and had not bought their allotted masks. Despite this system, supply problems persisted. In different regions of the country, population density and demand varied, and some pharmacies sold out their stocks of masks earlier than others. Recognizing that people needed a more effective system for finding masks, the government made mask inventory data available to companies and the general public. Three weeks later, about 200 mask apps and web services had been launched. Supplies of masks quickly stabilized, and people could more easily find and buy them. In addition, pharmacies were able to sell out their stocks of masks more efficiently. Conclusion: The South Korean case of mask demand and distribution during COVID-19 illustrates how all six of the social marketing components (policy, supplemented by products, price, place, promotion, and partnerships) need to be coordinated for effective mitigation of infectious disease. In particular, this case highlights the importance of public-private partnerships among the government, production companies, retailers, and members of the general public.

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Gambling is a potential hazard to life satisfaction, yet peer relationships online might buffer this risk. This study analyzed the ways problem gambling is associated with life satisfaction as well as the extent to which the use of online-gambling community participation and, alternatively, offline belonging affect this association. A web-based survey was conducted among people aged 15-25 in Finland (n = 1,200), the United States (n = 1,212), South Korea (n = 1,192), and Spain (n = 1,212). The main variables included life satisfaction, problem gambling measured by the South Oaks Gambling Screen, online-gambling community participation, and offline belonging. Controls included compulsive internet use, hazardous drinking, psychological distress, income, age, and gender. Linear regression models were employed with country interactions. Results showed problem gambling had a negative relationship with life satisfaction, but the association was explained by control variables. Online-gambling community participation had a positive relationship with life satisfaction, especially among pathological gamblers who had poor offline relationships. Country comparisons revealed that the direct effect of excessive gambling and the compensating effect of online-gambling communities were most prominent in Finland.

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BACKGROUND AND AIMS: Loneliness and a low sense of mastery are associated with excessive gambling, but the underlying processes of these relationships remain unstudied. Because psychological distress can increase vulnerability to excessive gambling, we investigated its mediating role in these relationships among young people. To meet the need for cross-country research, we also observed how these relationships occur in four countries with different cultures. DESIGN, SETTING, AND PARTICIPANTS: Demographically balanced cross-sectional survey data were collected from 15-25-year-olds in Finland (n = 1200; 50% male), the United States (n = 1212; 49.8% male), South Korea (n = 1192; 49.6% male), and Spain (n = 1212; 51.2% male). MEASUREMENTS: Excessive gambling was measured with the South Oaks Gambling Screen, psychological distress was assessed with the 12-item General Health Questionnaire, loneliness was measured with the three-item Loneliness Scale, and low sense of mastery was assessed with the Pearlin Mastery Scale. Associations were examined first using zero-inflated negative binomial regression analyses with excessive gambling as the outcome. In addition, path analyses were performed to study how loneliness and low sense of mastery relate to excessive gambling, with psychological distress as the mediating variable. FINDINGS: Loneliness and low sense of mastery were associated indirectly with excessive gambling via psychological distress in all country samples. Low sense of mastery was also directly associated with excessive gambling. There was a direct association between loneliness and excessive gambling only in samples from South Korea and Spain. CONCLUSIONS: Psychological distress is an important factor in understanding how loneliness and sense of mastery relate to gambling.

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Based on lifestyle exposure theory (LET), this study examined online dating application (ODA) use and victimization experiences among adolescents using large cross-national samples of Finnish, American, Spanish, and South Korean young people between ages 15 and 18. According to logistic regression analyses in two substudies, ODA use was associated with more likely victimization to online harassment, online sexual harassment, and other cybercrimes and sexual victimization by adults and peers. According to mediation analyses, this relationship was mainly accounted for by the fact that ODA users engage in more risky activities in online communication and information sharing. Attention should be paid to the risks ODAs pose to vulnerable groups, such as young people, with insufficient skills to regulate their social relationships online.

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Problem gambling among young people is an emerging trend globally. The online environment in particular offers various possibilities for gambling engagement. This is the first cross-national survey study using the social ecological model to analyze problem gambling, especially in the online context. The study aimed to analyze how different social ecological spheres explain problem gambling. Participants were young people aged 15-25 in the United States (n = 1212), South Korea (n = 1192), Spain (n = 1212), and Finland (n = 1200). The South Oaks Gambling Screen (SOGS) instrument measured problem gambling. The regression models analyzed problem gambling with measures of intrapersonal, interpersonal, organizational, and societal spheres. Spanish participants had the highest SOGS score for problem gambling. In all countries, the variations in problem gambling were best explained by the organizational sphere measures (26%) when compared to the intrapersonal (11%), interpersonal (5%), and societal (3%) spheres. In the full model, the organizational sphere measures had strong associations with problem gambling. These included consumer debt, online gambling community participation, online casino participation, and exposure to online pop-up advertisements. Problem gambling was also associated with conformity to group norms in the interpersonal sphere, and male gender and impulsivity in the intrapersonal sphere. Cross-national results were similar in different countries. Within the final model, gambling community participation had the strongest association with problem gambling (ß = 0.23, p < 0.001). The online context plays a major role in problem gambling behavior. The social ecological model is a useful tool for tackling problem gambling and developing preventative measures.

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Routine Activity Theory (RAT) and the general theory of crime have been widely employed to understand cybercrime victimization. However, there is a need to integrate these theoretical frameworks to better understand victimization from a cross-national perspective. A web-based survey was conducted among participants aged 15 to 25 years from the U.S., Finland, Spain, and South Korea. Factors related to RAT were associated with increased victimization in all four countries although results varied between the countries. Low self-control was associated with victimization in the U.S., Finland, and Spain but not in South Korea. Using decomposition analysis, we discovered that the association between low self-control and victimization occurred both directly and indirectly through measures of RAT. Our study demonstrates the need to integrate theories to better understand the dynamics of victimization. Despite the usefulness of RAT, other theories should be taken into consideration when investigating cybercrime victimization.

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With specific references to South Korea's response to the COVID-19 pandemic, this commentary discusses insights and problems related to the issue of how to communicate uncertainties about health risks to affected publics. First, we discuss examples of uncertainties relating to deficiencies of knowledge and divergent views among experts. Next, we summarize key findings on effective communication about uncertainty, and we suggest possible future directions for research in this area. Last, we suggest further development of theories that could explain how people process uncertainty in communication and how uncertainty leads to specific cognitive, emotional, and behavioral reactions.

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The objective of this study was to examine if belonging to online communities and social media identity bubbles predict youth problem gambling. An online survey was administered to 15-25-year-old participants in the United States (N = 1212), South Korea (N = 1192), Spain (N = 1212), and Finland (N = 1200). The survey measured two dimensions of online behavior: perceived sense of belonging to an online community and involvement in social media identity bubbles. Belonging to an online community was examined with a single item and involvement in social media identity bubbles was measured with the six-item Identity Bubble Reinforcement Scale. The South Oaks Gambling Screen was used to assess problem gambling. Statistical analyses utilized linear regression modeling. According to the analyses, strong sense of belonging to an online community was associated with higher problem gambling, but the association was observed mainly among those young individuals who were also involved in social media identity bubbles. For those youths who did not indicate identity bubble involvement, online relationships appeared to function as those offline. Some differences across the four countries were observed but overall, the results indicate that social media identity bubbles could partly explain the harmful influence that some online relations have on youth behavior.

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BACKGROUND: In the ever-growing and technologically advancing world, an increasing amount of social interaction takes place through the Web. With this change, loneliness is becoming an unprecedented societal issue, making youth more susceptible to various physical and mental health problems. This societal change also influences the dynamics of addiction. OBJECTIVE: Employing the cognitive discrepancy loneliness model, this study aimed to provide a social psychological perspective on youth addictions. METHODS: A comprehensive survey was used to collect data from American (N=1212; mean 20.05, SD 3.19; 608/1212, 50.17% women), South Korean (N=1192; mean 20.61, SD 3.24; 601/1192, 50.42% women), and Finnish (N=1200; mean 21.29, SD 2.85; 600/1200, 50.00% women) youths aged 15 to 25 years. Perceived loneliness was assessed with the 3-item Loneliness Scale. A total of 3 addictive behaviors were measured, including excessive alcohol use, compulsive internet use, and problem gambling. A total of 2 separate models using linear regression analyses were estimated for each country to examine the association between perceived loneliness and addiction. RESULTS: Loneliness was significantly related to only compulsive internet use among the youth in all 3 countries (P<.001 in the United States, South Korea, and Finland). In the South Korean sample, the association remained significant with excessive alcohol use (P<.001) and problem gambling (P<.001), even after controlling for potentially confounding psychological variables. CONCLUSIONS: The findings reveal existing differences between youths who spend excessive amounts of time online and those who engage in other types of addictive behaviors. Experiencing loneliness is consistently linked to compulsive internet use across countries, although different underlying factors may explain other forms of addiction. These findings provide a deeper understanding in the mechanisms of youth addiction and can help improve prevention and intervention work, especially in terms of compulsive internet use.

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AIMS: To examine the continuing role of daily popular social media use in youth hazardous alcohol consumption in four countries across continents. METHODS: A web-based survey was given to youths aged 15-25 in the USA (n = 1212), South Korea (n = 1192), Finland (n = 1200) and Spain (n = 1212). Hazardous alcohol use (alcohol use disorders identification test-C) was the dependent variable. Main independent variables measured daily use of different social media services. Controls included compulsive Internet use, offline belonging, psychological distress, impulsivity, risk-taking, age and gender. Linear regression models and mediation analyses with bootstrapping were done for each country. RESULTS: Daily use of Facebook and Instagram was associated with higher hazardous alcohol use among youths in Finland, South Korea and Spain. Daily instant messaging was related to higher hazardous alcohol use among South Korean and Finnish youths. Daily YouTube use was associated with higher hazardous alcohol use among youths in South Korea, but lower hazardous alcohol use among youths in the USA and Finland. Daily Twitter use was related to lower hazardous drinking among youths in Finland but higher hazardous drinking among youths in Spain. The mediation analyses revealed that uploading pictures to social media is a possible facilitator of social media-related hazardous alcohol use among youths in the USA and Spain. CONCLUSION: Certain social media platforms might inspire and/or attract hazardously drinking youths, contributing to the growing opportunities for social media interventions.

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This study examines multiple aspects of e-cigarette mentions on different online media channels during the announcement and implementation of a cigarette tax increase policy in South Korea. It consists of three parts. First, a Naive Bayes classifier was used to sort 59,147 tweets about e-cigarettes into five pre-designated themes - promotion, health, policy, product evaluation, and price - and to determine their relative prevalence. Second, social network analysis was used to identify the themes' dissemination patterns. Third, the themes were examined for their associations with e-cigarette mentions in two other media channels - online news articles (n = 580) and search engine queries (64 weeks of Google Trends data). Results show that the most prevalent tweet theme was product evaluation, and the theme with the largest increase during the data collection period was promotion. Promotion-themed tweets were the least connected with tweets about the other five themes, while health-themed tweets were the most connected. Finally, product evaluation-themed tweets exhibited the strongest correlation with search engine query count and had the largest explanatory power.

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Social media have become increasingly important in risk and crisis situations. However, little is known about which types of social media have greater influence on risk perceptions and behaviors. This study pursues two goals related to this question. The first is to explicate the cognitive mechanism underlying the process through which exposure to risk information on social media shapes people's behavioral intentions. The second is to determine whether exposures to risk information on two different types of social media-content-oriented social media focusing on shared interests versus user-oriented social media focusing on social relationships-have different effects on people's risk perceptions and behavioral intentions. Analyzing survey data from 688 adults from the general population of South Korea in the context of carcinogenic hazards, we found that self-reported content-oriented social media exposure (to risk information) was significantly related to both personal-level and societal-level risk perceptions. In addition, content-oriented social media exposure was associated with behavioral intentions indirectly through risk perceptions. However, user-oriented social media exposure had no impact on risk perceptions and behavioral intentions, either directly or indirectly through risk perceptions.

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INTRODUCTION: Despite regulations that forbid cigarette packages from displaying messages such as "mild," "low-tar," and "light," many smokers still have misperceptions about "light" or "low-tar" cigarettes. One reason may be that tar amount displays continue to be permitted. This study examines whether removing tar delivery information from packaging reduces consumer misperceptions about "low-tar" cigarettes. METHODS: An online experiment was conducted in South Korea among 531 smokers who were randomly assigned to one of two conditions: with and without tar information on cigarette packages. Participants evaluated which type of cigarette was mildest, least harmful, easiest for nonsmokers to start smoking, and easiest for smokers to quit. RESULTS: Ten out of 12 chi-square tests showed that people judged the lowest reported tar delivery cigarette to be the mildest (p < .01), least harmful (p < .05), easiest to start (p < .05), and easiest to quit (p < .05)-less so in the "no-tar" condition than the "tar" condition. A higher level of misbeliefs about supposed low-tar cigarettes were found in the "tar" condition compared to the "no-tar" condition for all three brands (t = 5.85, 4.07, 3.82, respectively, p < .001). Regression analyses showed that the "no-tar" condition negatively predicted the level of misbeliefs after controlling for demographic and smoking-related variables (B [SE] = -.72 (.12), -.50 (.12), -.48 (.13), respectively, p < .001). CONCLUSIONS: Banning reported tar deliveries from cigarette packages is likely to reduce smokers' misconceptions about "low-tar" cigarettes. When reported tar deliveries are absent, smokers have inconsistent judgments about differently packaged cigarettes. IMPLICATIONS: When cigarette packages depict lower reported tar number deliveries, participants erroneously perceive them to be less harmful than packages displaying higher tar numbers. These misperceptions of harm may prompt smokers who might otherwise attempt to quit smoking to instead consume cigarettes with lower tar deliveries due to the mistaken belief that they will reduce their risk.

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This study has two aims: to identify effective strategies for managing false rumors about risks and to investigate the roles that basic and situational trust in government play in that process. Online experiment data were collected nationwide from 915 adults in South Korea. They were exposed to a false rumor about radiation-contaminated seafood and were randomly assigned to one of three rumor response conditions (refutation, denial, attack the attacker). One-way ANOVA indicated that the refutation response yielded the highest level of situational trust in government response (TGR). Results of moderated mediation models using the PROCESS Macro indicated the following. (1) The refutation response had a positive effect on TGR, and the attack response had a negative effect. (2) There were significant interaction effects between the attack response and preexisting basic trust in government (BTG) in that the attack response had a negative effect on TGR only when BTG was low. (3) TGR significantly mediated the relationship between each of the three rumor responses and two dependent variables (intentions for rumor dissemination and for unwarranted actions), but in dramatically different ways across the responses. This study provides evidence for the superior effectiveness of the refutation rumor response and identifies specific roles of trust in government in the risk rumor management process.

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This experimental study explores how governments should respond to rumors about national-level risk issues. Informed by research in rumor psychology and risk/crisis communication, it investigates whether type of rumor and rumor response strategy have main and interaction effects on reducing rumor beliefs and intention to disseminate rumor. The two featured rumor types are the bogie rumor, which highlights feared outcomes, and the wedge rumor, which aims to reinforce differences between rival groups. Derived from Situational Crisis Communication Theory, the three response strategies examined are refuting the rumor, denying it, and attacking its source. Data were drawn from part of a large-scale online experiment, and the sample of the analysis was 942 South Korean adults. The experiment had a between-subjects design of 2 rumor type (wedge vs. bogie) x 3 government response strategies (refutation, denial, attack the attacker). Results show that all three rumor response strategies significantly reduced rumor beliefs, but only the refutation strategy significantly reduced intention to disseminate the rumor. Rumor type (bogie) and response strategies (refutation) had main, but not interaction, effects on reduction of intention to disseminate the rumor.

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BACKGROUND: Ethiopia, the second most populous country in Africa, has a total fertility rate of 4.6, a decrease from 5.5 in 2000. However, only 35.3% of women in the reproductive age group use modern family planning (FP) methods, and the 22.3% of them who have an unmet need for family planning is among the highest rates in sub-Saharan African countries. The Small, Happy, and Prosperous family in Ethiopia (SHaPE) is one of the country's first comprehensive multimedia family planning campaigns. Its purpose is to increase FP-related knowledge, attitude, and practice of Ethiopians, particularly women of reproductive age. METHODS/DESIGN: The SHaPE campaign has multiple components: (1) a nationwide representative survey, which serves as formative research to identify region-specific and culture-appropriate media, messages, and barriers and determinants of family planning; (2) a multimedia communication campaign intervention, including radio dramas and other interpersonal, community-level, and mass media channels; and (3) campaign evaluation, including pre-, process-, and post-evaluation research using both quantitative and qualitative methodologies. The main target population for SHaPE is reproductive age women and men in three regions: Amhara, Oromia, and Somali. These regions take up about 66.6% of the entire country and have distinct ethnicities, cultures, and languages. DISCUSSION: SHaPE contributes to existing family planning research and intervention because it is theory- and evidence-based, and it employs integrated marketing communications and entertainment-education approaches with key messages that are tailored to audiences within unique cultures. But even within a country, a nationwide campaign with uniform messages is neither possible nor desirable due to different cultures, norms, and languages across regions. Last, media campaigns in developing and underdeveloped countries require constant monitoring of political situations.

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This study examines the roles that the media effects and persuasion ethics schemas play in people's responses to an antismoking ad in South Korea. An online experiment was conducted with 347 adults. The media effects schema was manipulated with news stories on an antismoking campaign's effectiveness, while the persuasion ethics schema was measured and median-split. Analysis of Variance (ANOVA) tests were performed for issue attitudes (Iatt), attitude toward the ad (Aad), and behavioral intention (BI). Results show significant main effects of the media effects schema on the three dependent variables. People in the weak media effects condition had significantly lower Iatt, Aad, and BI than those in either the strong media effects condition or the control condition. This pattern was more pronounced among smokers. While there was no significant main effect of the persuasion ethics schema on any of the dependent variables, a significant interaction effect for persuasion ethics schema and smoking status was found on behavioral intention (BI). Nonsmokers' BI was significantly higher than smokers' in the low-persuasion ethics schema condition, but it was not significant in the high-persuasion ethics schema condition.

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