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The relationship between journalists and their sources is central to journalism practice. It is a relationship based on a power struggle over the presentation of information to the public. The nature of that relationship continues to change in response to cultural, social, political, and technological circumstances. Historically, the relationship between journalists and sources has been predominantly characterized as interdependent, oscillating between cooperation and conflict over the control of information. However, the arrival of digital publishing platforms has significantly disrupted this mutually dependent exchange. It has blurred the boundaries between the two roles and released sources from their traditional reliance on journalists to disseminate their messages to citizens. Using digital platforms, sources have the option to bypass the traditional media and communicate directly with the public if it meets their strategic communication goals. Depending on whether the source is trying to reach a specific audience via social media or a wider audience via mass media, he or she can “opt-in” or “opt-out” of a traditional journalist-source relationship. The shift in power between reporters and sources poses a challenge to the authority and control of journalists who have lost their stranglehold over the means of publication. This change points to issues of accountability and scrutiny and raises questions about the ongoing relevance of journalism’s “fourth estate” role in democracy.


Mark Morrison, Donald W. Hine, and Steven D'Alessandro

Communication with farmers about climate change has proven to be difficult, with relatively low acceptance of anthropogenic climate change or the idea that climate change will negatively affect agriculture. Many farmers have been impervious to climate change communications because of the nature of farming, their worldviews, and the controversies about climate change in the media. Segmentation studies from the agriculture and natural resource management literatures provide evidence of homogeneous farmer groups internationally with respect to climate change attitudes and behaviors in a farming context. Understanding these segments—including their values, beliefs, and behaviors—is important for developing tailored and targeted communications approaches. Based on understanding of commonly observed farmer segments, it is possible to tailor communication strategies to better engage with segments of concern, including which message to use, appropriate sources, as well as alternative communication techniques based on participatory approaches and use of the arts. For certain segments, discussion about human-induced climate change should be avoided given that it is contentious and not critical for how farmers should respond to climate change. Theoretical frameworks from psychology and marketing—such as the theory of planned behavior, the attitude-to-behavior process model, the motivation and opportunity and determinants (MODE) model, motivation to avoid harm, and the elaboration likelihood model—can also be used to inform the design of communication strategies for engaging with farmers. However, a careful analysis of farmer segments, their worldviews, their beliefs, and their position in the consumer decision-making process suggests that the recommendations from these theoretical models should not be implemented uniformly across farmer segments. Rather, the various theoretical models provide a number of strategies that need to be selectively applied based on knowledge of the target segment. While use of theory and understanding of segments will help to improve communications with farmers, it is apparent that changing the beliefs of farmers in some segments about the need to respond to climate change will require more than simply increasing the quantity or quality of communications. Engaging farmers in these segments requires a much richer information set and a much greater effort to show farmers how they should be responding to climate variability and change using practical demonstrations and participatory approaches.


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.