Graphical displays generally facilitate the communication of complex information and are ubiquitous in media. Unfortunately, people differ in their ability to extract data and meaning from graphical representations of quantitative information (i.e., graph literacy). This means that for some people, even well-designed, simple graphs will cause confusion and misunderstanding. Research on the psychology of graph comprehension focuses on two instruments that efficiently assess fundamental graph literacy among diverse adults. The Objective Graph literacy scale is a well-established instrument with good psychometric properties that measures skill via cognitive performance testing (e.g., interpreting and evaluating various graphs). The recently developed Subjective Graph Literacy scale is a brief self-report of graph literacy that can outperform the objective test in notable ways, while reducing text anxiety. Emerging applications in clinical research and practice, including computerized decision aids, can personalize content as a function of one’s graph literacy.
Rocio Garcia-Retamero, Dafina Petrova, Adam Feltz, and Edward T. Cokely
Jessica Gall Myrick and Robin L. Nabi
Fear is a negatively valenced discrete emotional state that is an inherent part of the human experience. With strong evolutionary roots, fear serves important functions, including alerting people to present threats and motivating action to avoid future threats. As such, fear is an emotion that frequently attracts the attention of scholars and message designers who hope to persuade audiences to change their behavior in light of potential threats to well-being and public safety. Several theories have aimed to describe the effects of fear-based appeals on audiences, focusing largely on the cognitive correlates of fear (i.e., severity and susceptibility) and their subsequent impacts on persuasive outcomes. However, more recent theorizing has returned to a focus on the influence that the emotion of fear itself has on attitude and behavior change. Given that many health-oriented fear appeals have been shown to evoke multiple emotions, including anger, disgust, and sadness, current theorizing has taken a mixed-emotions or emotional flow perspective to provide a deeper understanding of fear appeal effects. Further, individual differences have been considered to determine who is most likely to experience fear during and after message consumption. In addition to fear appeals that purposefully aim to scare audiences to motivate attitude and behavior change, recent work suggests that fear can be generated by other forms of messages (e.g., news accounts, social media posts, interpersonal conversations) that may influence receivers’ approaches to health issues. Moreover, research also suggests that fear may motivate social sharing of messages, which can in turn allow for more widespread influence of fear-based messages.
Kristin Page Hocevar, Miriam Metzger, and Andrew J. Flanagin
Our understanding and perceptions of source credibility significantly drive how we process health and risk messages, and may also influence relevant behaviors. Source credibility is believed to be impacted by both perceptions of source trustworthiness and expertise, and the effect of credibility on changes in attitudes and behavior has been studied for decades in the persuasion literature. However, how we understand and define source credibility—particularly the dimension of expertise—has changed dramatically as social media and other online platforms are increasingly used to design and disseminate health messages. While earlier definitions of source credibility relied heavily on the source’s credentials as indicators of expertise on a given topic, more recent conceptualizations must also account for expertise held by laypeople who have experience with a health concern. This shifting conceptualization of source credibility may then impact both why and when people select, as well as how they perceive, process, and judge, health messaging across both novel and more traditional communication contexts.
Kimberly A. Kaphingst
Direct-to-consumer advertising of prescription drugs (DTCA) is a multibillion-dollar industry in the United States, affecting the health-care landscape. DTCA has been controversial, since a major increase in this type of advertising resulted from re-interpretation of existing regulations in the late 20th century. Health and risk communication research can inform many of the controversial issues, assisting physicians, policymakers, and the public in understanding how consumers respond to DTCA. Prior research addresses four major topics: (1) the content of DTCA in different channels, (2) consumers’ perceptions of and responses to DTCA, (3) individual-level factors that affect how consumers respond to DTCA, and (4) message factors that impact consumers’ responses. Such research shows that the presentation of risk and benefits information is generally not balanced in DTCA, likely affecting consumers’ attitudes toward and comprehension of the risk information. In addition, despite consumers’ generally somewhat negative or neutral perceptions of DTCA, this advertising seems to affect their health information seeking and communication behaviors. Finally, a wide range of individual-level and message factors have been shown to have an impact on how consumers process and respond to DTCA. Consumers’ responses, including how they process the information, request prescription drugs from providers, and share information about prescription drugs, have an important impact on the effects of DTCA. The fields of health and risk communication therefore bring theories and methodologies that are essential to better understanding the impact of this advertising.
R. Craig Lefebvre and P. Christopher Palmedo
Many ideas about best practices for risk communication share common ground with social marketing theory and practice: for example, segmentation, formative research, and a focus on behavioral outcomes. Social marketing first developed as a methodology to increase the public health impact of programs and to increase the acceptability and practice of behaviors that improve personal and social well-being. The core concepts of this approach are to be people-centered and to aim for large-scale behavior change. An international consensus definition of social marketing describes it as an integration of theory, evidence, best practices, and insights from people to be served. This integrated approach is used to design programs that are tailored to priority groups’ needs, problems, and aspirations and are responsive to a competitive environment. Key outcomes for social marketing efforts are whether they are effective, efficient, equitable, and sustainable. The 4P social marketing mix of Products, Prices, Places, and Promotion offers both strategic and practical value for risk-communication theory and practice. The addition of products, for example, to communication efforts in risk reduction has been shown to result in significantly greater increases in protective behaviors. The Cover CUNY case demonstrates how full attention to, and consideration of, all elements of the marketing mix can be used to design a comprehensive risk-communication campaign focused on encouraging college student enrollment for health insurance. The second case, from the drug safety communication arena, shows how a systems-level, marketplace approach is used to develop strategies that focus on key areas where marketplace failures undermine optimal information-dissemination efforts and how they might be addressed.
Worldwide, key behavioral risk factors for ill-health and premature death include smoking, alcohol, too much or too little of several dietary factors, and low physical activity. At least three structural factors (biological attributes and functions, population size and structure, and wealth and income disparities) modify the global impact that the risk factors have on health; without accounting for these structural drivers, the effect of government-driven incentives to act on the behavioral risk factors for improved health will be suboptimal. The risk factors and their impact on health are further driven by malleable circumstantial drivers, including technological developments, exposure to products, social influences and attitudes, and potency of products. Government-driven incentives, which can be both positive and negative, can act on the circumstantial drivers and can impact on the behavioral risk factors to improve or worsen health. Government-driven incentives include a range of policies and measures: policies that reduce exposure; regulation of the private sector; research and development to reduce potency; resource allocation for advice and treatment; direct incentives on individual behavior; and, managing co-benefits and adverse side effects. Within a framework of government-driven whole-of-society approaches to improve health, an accountability system is needed to identify who or what causes what harm to health to whom. A health footprint, modeled on the carbon footprint is proposed as the accounting system.
Shirley S. Ho and Andrew Z. H. Yee
Health communication research has often focused on how features of persuasive health messages can directly influence the intended target audience of the messages. However, scholars examining presumed media influence on human behavior have underscored the need to think about how various audience’s health behavior can be unexpectedly influenced by their exposure to media messages. Two central theoretical frameworks have been used to guide research examining the unintended effects: the third-person effect and the influence of presumed media influence (IPMI). The theoretical explanations for presumed media influence is built on attribution bias, self-enhancement, perceived exposure, perceived relevance, and self-categorization. Even though both the third-person effect and the IPMI share some theoretical foundations, and are historically related, the IPMI has been argued to be better suited to explaining a broader variety of behavioral consequences. One major way that presumed media influence can affect an individual’s health behavior is through the shifting of various types of normative beliefs: descriptive, subjective, injunctive, and personal norms. These beliefs can manifest through normative pressure that is theoretically linked to behavioral intentions. In other words, media have the capability to create the perception that certain behaviors are prevalent, inculcating a normative belief that can lead to the uptake of, or restrain, health behaviors. Scholars examining presumed media influence have since provided empirical support in a number of specific media and behavioral health contexts. Existing findings provide a useful base for health communication practitioners to think about how presumed media influence can be integrated into health campaigns and message design. Despite the proliferation of research in this area, there remains a need for future research to examine these effects in a new media environment, to extend research into a greater number of health outcomes, to incorporate actual behavioral measures, and to ascertain the hypothesized causal chain of events in the model.
Christopher B. Mayhorn and Michael S. Wogalter
Warnings are risk communication messages that can appear in a variety of situations within the healthcare context. Potential target audiences for warnings can be very diverse and may include health professionals such as physicians or nurses as well as members of the public. In general, warnings serve three distinct purposes. First, warnings are used to improve health and safety by reducing the likelihood of events that might result in personal injury, disease, death, or property damage. Second, they are used to communicate important safety-related information. In general, warnings likely to be effective should include a description of the hazard, instructions on how to avoid the hazard, and an indication of the severity of consequences that might occur as a result of not complying with the warning. Third, warnings are used to promote safe behavior and reduce unsafe behavior. Various regulatory agencies within the United States and around the globe may take an active role in determining the content and formatting of warnings. The Communication-Human Information Processing (C-HIP) model was developed to describe the processes involved in how people interact with warnings and other information. This framework employs the basic stages of a simple communication model such that a warning message is sent from one entity (source) through some channel(s) to another (receiver). Once warning information is delivered to the receiver, processing may be initiated, and if not impeded, will continue through several stages including attention switch, attention maintenance, comprehension and memory, beliefs and attitudes, and motivation, possibly ending in compliance behavior. Examples of health-related warnings are presented to illustrate concepts. Methods for developing and evaluating warnings such as heuristic evaluation, iterative design and testing, comprehension, and response times are described.
Amy E. Chadwick
Hope has been defined in primarily two ways, and both have implications for message design within health and risk communication. First, hope has been defined as a way of thinking, or disposition, that affects how people pursue goals. Dispositional hope manifests in beliefs about one’s capacity to initiate and sustain action toward goals (agency) and one’s ability to generate ways to reach those goals. Dispositional hope has been associated with positive physical and mental health outcomes. For example, high-hope women have greater intentions to engage in cancer prevention behaviors than do low-hope women. Numerous studies have associated higher hope with better pain management, and people who are higher in hope have a greater pain tolerance than people lower in hope. Hope is also related to better psychological adjustment. Much of the research on dispositional hope focuses on correlating hope with a variety of positive health and non-health outcomes; however, psychotherapeutic interventions have also been designed to increase dispositional hope. These interventions have shown improvements in health-related outcomes. Although their potential is not yet realized, interventions for developing dispositional hope could improve compliance with medical recommendations, increase adoption of health behaviors, and decrease risk behaviors. The second way that hope has been defined is as a discrete emotion. Discrete emotions are brief, intense, psychological, and evaluative reactions directed at external stimuli (e.g., people, events, or objects). In response to these external stimuli, emotions help individuals adapt to their environment by activating a unique pattern of thoughts (cognitions), physiological changes, subjective feelings, motor expressions, and action (or behavioral) tendencies. Lazarus’s cognitive-mediational theory has been one of the most influential theories of discrete emotions that includes a definition of hope. Lazarus identifies the core relational theme of hope as “fearing the worst but yearning for better.” Lazarus deems hope to be a problematic emotion because he believes hope contains both positive and negative elements. Despite uncertainty about the exact nature of hope, Lazarus believes that hope is vital to coping with stress. Hope enables people to believe in the possibility of better circumstances and therefore is critical as a coping mechanism against despair. Lazarus does not provide guidance for what a message might need to include to evoke hope. Drawing on Lazarus and appraisal theories in general, MacInnis and de Mello suggest tactics that consumer marketing advertisements could use to induce hope. Specifically, the authors focus on turning “impossibility into possibility” and enhancing “yearning.” De Mello and MacInnis also theorize that hope can lead to motivated processing of information resulting in both positive (e.g., coping, well-being, and goal achievement) and negative (e.g., risky behavior, self-deception) outcomes. Unfortunately, the theorizing of de Mello and MacInnis was never empirically tested. To further explore how feelings of hope are created, Prestin examined underdog narratives in entertainment media. Underdog narratives show characters who are attempting to meet a goal despite unfavorable circumstances and odds. These narratives evoke hope and make people more motivated to meet their own personal goals. Although their potential has not been fully explored, underdog narratives may assist individuals in overcoming challenging circumstances, such as battling addiction or developing new health habits. There are numerous mechanisms still to be examined that may explain the effects of underdog narratives beyond their ability to evoke hope. Recently, Chadwick defined hope as a future-oriented, discrete emotion that focuses on an opportunity to achieve a desired future outcome. Her definition builds on the work of Lazarus and Roseman and has implications for the design of messages that evoke hope. According to Chadwick, hope is evoked by appraisals of a future outcome as (a) consistent with goals (goal congruence), (b) possible but not certain (possibility), (c) important (importance), and (d) leading to a better future (future expectation). All four of these appraisals combine to create a perception of opportunity and the discrete emotion hope. Hope motivates behavior by focusing one’s thoughts on capitalizing on an opportunity. Chadwick states that hope also involves (a) an approach action tendency that motivates individuals to take, or continue, action to achieve the desired outcome, (b) increased heart rate and skin conductance, (c) an open facial expression, heightened focus, and alert body posture, and (d) a feeling of eager attention. Chadwick’s definition has clear implications for developing messages that evoke hope. Messages designed to create appraisals of the importance, goal congruence, positive future expectation, and possibility of a future event evoke hope and are called hope appeals. Like other theoretical explications of emotional appeals, a hope appeal has two components: (a) the inducement of hope through the presentation of an opportunity and (b) the presentation of recommended actions to achieve the desired outcome. The recommended actions component includes information designed to (a) increase the receiver’s perception of his or her ability to perform the recommended action (i.e., self-efficacy) and (b) demonstrate the ability of the recommended actions to achieve the desired outcome (i.e., response efficacy). Empirically, scholars have tested the effects of hope and messages that evoke hope. Hope appeals increase attention to messages about climate change and increase mitigation behavioral intention and mitigation behavior. In addition, feelings of hope increase interest in climate change protection and are positively correlated with pro-environmental behaviors and support for climate change policies. Feelings of hope significantly predict interest in climate protection, self-efficacy, interpersonal communication intention, information seeking intention, and behavioral intention. Hope and hopeful narratives have also been associated with greater perceived message effectiveness and more agreement with the message content. After a stressful experience that accelerates heart rate, evoking hope decelerates heart rate and decreases state anxiety. This research provides evidence that messages that evoke hope can counter the psychological and physiological effects of stressful events. In addition, researchers have examined the effects of hope on a variety of health, persuasion, political communication, and marketing outcomes. Preliminary evidence indicates that hope appeals are equally as or more effective than guilt and fear appeals at increasing interpersonal communication intention, self-efficacy, information seeking intention, and behavioral intention. In addition, hope appeals create less reactance (anger) than fear appeals. Together these results indicate that hope and hope appeals have substantial potential to influence health and risk behavior.