Show Summary Details
Page of

Risk perception and communication 

Risk perception and communication
Chapter:
Risk perception and communication
Author(s):

Baruch Fischhoff

DOI:
10.1093/med/9780199218707.003.0057
Page of

PRINTED FROM OXFORD MEDICINE ONLINE (www.oxfordmedicine.com). © Oxford University Press, 2016. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a title in Oxford Medicine Online for personal use (for details see Privacy Policy and Legal Notice).

date: 15 December 2019

Public health depends on laypeople’s ability to understand the health-related choices that they and their societies face. The study of risk perception examines that ability. The study of risk communication examines the processes that determine how communication with lay people enhances or degrades their decision-making ability. Although focused on decisions involving risk, that research necessarily considers potential benefits as well, including the benefits of reducing risks (e.g. through medical treatment, lifestyle changes, or improved air quality). Communication is seen as a two-way process. Without listening to people, it is impossible to understand what they know and value, hence impossible to provide them with relevant information in a comprehensible form. The basic science of behavioural decision research describes the general processes that find specific expression in risk-related decisions. It provides the conceptual framework, methodology, and theory for this chapter.

Risk perception and communication research is conceptually straightforward. First, characterize the decisions that people face, in sufficiently precise terms to identify the information that is most critical to them. Second, describe people’s existing beliefs and values, in sufficiently precise terms to understand their roles in risk-related choices. Third, develop and empirically evaluate communications designed to bridge the critical gaps between what people know and what they need to know, in order to have the best chance of making choices that achieve what they value. These steps are interdependent. For example, descriptive research can reveal unexpected goals, obstacles, and capabilities, forcing revision of the decision analysis; communication failures can force additional research regarding decision-making processes.

Executing a communication research programme requires four kinds of expertise: (a) subject matter specialists; (b) risk and decision analysts, for characterizing choices and identifying critical information; (c) behavioural scientists, for characterizing existing beliefs and values, then designing and empirically evaluating communications; and (d) communication practitioners, for executing sustainable programmes. Individuals with each kind of expertise should have final authority in their domain.

Behavioural decision research provides extensive guidance on two topics central to this endeavour. One is identifying potential threats to risk-related decision making, along with an understanding of the underlying behavioural processes that communications must address. The second is the measurement procedures needed to ensure that people have been properly understood, when creating and evaluating communications. Without proper measurement, it is impossible to assess and address people’s information needs. A particular risk is underestimating laypeople’s decision-making competence, thereby denying them the opportunity for active participation in health decisions. That risk is aggravated when communications are disseminated without proper evaluation, after which their audience is held responsible for failing to understand content that was neither clear nor relevant. One should no more release untested communications than untested pharmaceuticals. The chapter seeks to reduce those risks, while helping experts to help laypeople to choose wisely.

Access to the complete content on Oxford Medicine Online requires a subscription or purchase. Public users are able to search the site and view the abstracts for each book and chapter without a subscription.

Please subscribe or login to access full text content.

If you have purchased a print title that contains an access token, please see the token for information about how to register your code.

For questions on access or troubleshooting, please check our FAQs, and if you can't find the answer there, please contact us.