Publications by authors named "Christopher E Clarke"

With the rapid growth of unconventional oil and natural gas development transforming the U.S. economic and physical landscape, social scientists have increasingly explored the spatial dynamics of public support for this issue-that is, whether people closer to unconventional oil and gas development are more supportive or more opposed.

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Media coverage of contentious risk issues often features competing claims about whether a risk exists and what scientific evidence shows, and journalists often cover these issues by presenting both sides. However, for topics defined by scientific agreement, balanced coverage erroneously heightens uncertainty about scientific information and the issue itself. In this article, we extend research on combating so-called information and issue uncertainty using weight of evidence, drawing on the discredited autism-vaccine link as a case study.

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Journalists communicating risk-related uncertainty must accurately convey scientific evidence supporting particular conclusions. Scholars have explored how "balanced" coverage of opposing risk claims shapes uncertainty judgments. In situations where a preponderance of evidence points to a particular conclusion, balanced coverage reduces confidence in such a consensus and heightens uncertainty about whether a risk exists.

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This article presents findings from two studies that describe news portrayals of cancer causes and prevention in local TV and test the effects of typical aspects of this coverage on cancer-related fatalism and overload. Study 1 analyzed the content of stories focused on cancer causes and prevention from an October 2002 national sample of local TV and newspaper cancer coverage (n = 122 television stations; n = 60 newspapers). Informed by results from the content analysis, Study 2 describes results from a randomized experiment testing effects of the volume and content of news stories about cancer causes and prevention (n = 601).

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Researchers have increasingly focused on how social determinants of health (SDH) influence health outcomes and disparities. They have also explored strategies for raising public awareness and mobilizing support for policies to address SDH, with particular attention to narrative and image-based information. These efforts will need to overcome low public awareness and concern about SDH; few organized campaigns; and limited descriptions of existing message content.

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This article explores public responses to narratives and statistical images, predominantly graphs and maps, designed to raise awareness of social determinants of health and health disparities. We focus particular attention on respondents' interpretation of the complexity of health causality and the typicality of the situations described. We conducted 24 focus groups with liberal and conservative adults (n = 180 participants) living in a large U.

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Scholars have examined how news media frame events, including responsibility for causing and fixing problems, and how these frames inform public judgment. This study analyzed 281 newspaper articles about a controversial medical study linking the measles, mumps, and rubella (MMR) vaccination with autism. Given criticism of the study and its potential negative impact on vaccination rates across multiple countries, the current study examined actors to whom news media attributed blame for the MMR-vaccine association, sources used to support those attributions, and what solutions (e.

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When reporting health risks, the news media are often criticized for omitting "mobilizing" information that allows readers to act on existing attitudes. Using American and British newspaper coverage of the autism-vaccine controversy as a case study, this article takes a "behind the scenes" look at normative pressures that may influence whether such information appears in coverage. In particular, can holding health officials accountable for their actions potentially "crowd out" mobilizing information? A content analysis suggests that mobilizing information (at least one of four examples) was present in only 16% of articles, compared to 38% that mentioned accountability messages (at least one of two examples).

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In response to low influenza vaccination rates among health care workers, health officials have explored determinants of uptake and developed communication interventions. Key to these efforts is how workers seek and attend to vaccine information. We applied a model of risk information seeking and processing to survey 226 physicians and nurses at a large, urban hospital (response rate = 5.

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Considerable research exists on how government agencies at the federal, state, and local levels communicated during the fall 2001 anthrax attacks. However, there is little research on how other institutions handled this crisis, in terms of their response to potential anthrax contamination (aka "white powder scares") and their approach to disseminating important health and safety information. In this article, we investigate a major university's communication response to the anthrax crisis.

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