Ellen A. Wartella, Alexis R. Lauricella, Leanne Beaudoin-Ryan, and Drew P. Cingel
This is an advance summary of a forthcoming article in the Oxford Research Encyclopedia of Communication. Please check back later for the full article.
Children are and have been active media users for decades. Historically, the focus on children and media issues have centered on the concerns and consequences of media use, generally around violence. In the last 40 years, we have seen a shift to study children and media from a more holistic approach, to understand both the positive and negative relationships between children and media use. Further, the recognition of the very important developmental differences that exist between children of different ages and the use of grand developmental theories, including those by Piaget and Vygotsky, have supported the field’s understanding of the unique ways in which children use media and the effects it has on their lives. Three important constructs related to a more complete understanding of children’s media use are the ABCs (attention, behavior, and comprehension). The first construct, attention, focuses on the way in which children’s attention to screen media develops, how factors related to parents and children can direct or influence attention to media, and how media may distract attention. The second construct is the behavioral effect of media use, including the relationship between media use and aggressive behavior, but importantly, the positive effect of prosocial media on children’s behavior and moral development. Finally, the third construct is the important and dynamic relationship between media and comprehension and learning. Taken together, these constructs describe a wide range of experiences that occur within children’s media use.
Janice L. Krieger and Jordan M. Neil
Strategic communication is an essential component in the science and practice of recruiting participants to clinical research studies. Unfortunately, many clinical research studies do not consider the role of communication in the recruitment process until efforts to enroll patients in a timely manner have failed. The field of communication is rich with theory and research that can inform the development of an effective recruitment plan from the inception of a clinical research study through informed consent. The recruitment context is distinct from many other health contexts in that there is often not a behavioral response that can be universally promoted to patients. The appropriateness of a clinical research study for an individual is based on a number of medical, psychological, and contextual factors, making it impossible to recommend that everyone who is eligible for a clinical research study enroll. Instead, clinical research study recruitment efforts must utilize strategic communication principles to ensure that messages promote awareness of clinical research, maximize personal relevance, minimize information overload, and facilitate informed choice. This can be accomplished through careful consideration of various aspects of the communication context described in this chapter, including audience segmentation, message content, message channels, and formative, process, and outcome evaluation, as well as the enrollment encounter.
Kristin 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.