Publications

Perceived Acceptability of Risk Analysis as a Decision‐Making Approach

Three methods for making a consumer product safety decision were evaluated on scales relating to their perceived acceptability, logical soundness, completeness, and sensitivity to moral and ethical concerns. Two of the methods were formalized techniques: cost‐benefit analysis and risk analysis. The third method involved abiding by standard industry practices. Other factors in the decision‐making context were also varied. The results indicated that formalized techniques were preferred over the standard practices method. Within the formalized methods, cost‐benefit analysis was judged less acceptable than a comparable method that did not involve making explicit value tradeoffs. All methods were judged more acceptable when they led to improved product safety. Knowledge of consequences did not exert direct effect on judgments, though it did interact significantly with other variables. The results are discussed in terms of judgmental processes that people apply when evaluating decision methods.

Public Attitudes Toward Siting a High‐Level Nuclear Waste Repository in Nevada

This paper examines the sources of public opposition to a high‐level nuclear waste repository among samples of 1001 residents of Nevada and a national sample of 1201 residents. Two models of choice are contrasted: A benefit‐cost model and a risk‐perception model of individual choice. The data suggest that the willingness of Nevada residents to accept a repository at Yucca Mountain depends upon subjective risk factors, especially the perceived seriousness of risk to future generations. Perceived risk depends in part on level of trust placed in the Department of Energy to manage a repository safely. Opposition to a local repository did not decrease significantly if compensation in the form of annual rebates, either ($1000, $3000, or $5000 per year for 20 years) were offered to residents. The public needs to be convinced before compensation is considered, that the repository will possess minimal risks to themselves as well as to future generations, and that the site currently targeted is suitable. One way to do this is through adoption of mitigation and control procedures such as strict federal standards and local control over the operation of the repository. The federal government should also consider returning to the fair procedure for selection between candidate sites specified in the initial Nuclear Waste Policy Act of 1982.

Consistency of choice between equally-valued alternatives.

Preventing Nuclear War

Worry, Risk Perceptions, and the Willingness to Act to Reduce Medical Errors

Perceived Risk, Trust, and Nuclear Waste:

Choose from multiple link options via Crossref

Who fears the HPV vaccine, who doesn’t, and why? An experimental study of the mechanisms of cultural cognition.

The cultural cognition thesis holds that individuals form risk perceptions that reflect their commitments to contested views of the good society. We conducted a study that used the dispute over mandatory HPV vaccination to test the cultural cognition thesis. Although public health officials have recommended that all girls aged 11 or 12 be vaccinated for HPV-a sexually transmitted virus that causes cervical cancer-political controversy has blocked adoption of mandatory school-enrollment vaccination programs in all but one state. An experimental study of a large sample of American adults (N = 1,538) found that cultural cognition generates disagreement about the risks and benefits of the vaccine through two mechanisms: biased assimilation, and the credibility heuristic. We discuss theoretical and practical implications.

Numbed by Numbers

People don't ignore mass killings because they lack compassion. Psychological research suggests it's grim statistics themselves that paralyze us into inaction.

Neural Underpinnings of the Identifiable Victim Effect: Affect Shifts Preferences for Giving

The “identifiable victim effect” refers to peoples' tendency to preferentially give to identified versus anonymous victims of misfortune, and has been proposed to partly depend on affect. By soliciting charitable donations from human subjects during behavioral and neural (i.e., functional magnetic resonance imaging) experiments, we sought to determine whether and how affect might promote the identifiable victim effect. Behaviorally, subjects gave more to orphans depicted by photographs versus silhouettes, and their shift in preferences was mediated by photograph-induced feelings of positive arousal, but not negative arousal. Neurally, while photographs versus silhouettes elicited activity in widespread circuits associated with facial and affective processing, only nucleus accumbens activity predicted and could statistically account for increased donations. Together, these findings suggest that presenting evaluable identifiable information can recruit positive arousal, which then promotes giving. We propose that affect elicited by identifiable stimuli can compel people to give more to strangers, even despite costs to the self.

Decision Making in Hazard and Resource Management

No abstract is provided for this article.

Dominance of Individuating Information and Neglect of Base Rates in Probability Estimation

Abstract : According to the normative theory of prediction, prior probabilities (base rates) which summarize what we know before receiving any specific evidence, should remain relevant even after such evidence is obtained. In the present study, subjects were asked to estimate the probability that one of two states was true on the basis of (a) information about the prior probabilities of the states and (b) individuating information, specific to the case at hand and known to be accurate with probability p. Subjects' responses were determined predominantly by the specific evidence; the prior probabilities were neglected, causing the judgments to deviate markedly from the normative response. Theoretical and practical implications of this result are discussed.

Perceived ecological risks of global change 1A psychometric comparison of causes and consequences

Clarifying lay views is a crucial step in characterizing the “social construct” of global change. This article discusses lay perceptions of ecological risks associated with three global environmental change processes: (a) climate change, (b) ozone depletion, and (c) species loss. A psychometric risk perception study obtained judgements from 68 subjects about 65 ecological risk items in terms of 31 scales. The findings show that sources of the three global change processes (eg refrigeration) are viewed quite differently than are the consequences (eg ozone depletion). There seems to be a persistent lack of connection in judgements regarding causes and consequences. Several possible explanations for these patterns are discussed. Implications of these patterns are considered in terms of possible policy responses, and improved risk communication strategies.

Perceived Risk, Trust, and the Politics of Nuclear Waste

The Department of Energy's program for disposing of high-level radioactive wastes has been impeded by overwhelming political opposition fueled by public perceptions of risk. Analysis of these perceptions shows them to be deeply rooted in images of fear and dread that have been present since the discovery of radioactivity. The development and use of nuclear weapons linked these images to reality and the mishandling of radioactive wastes from the nation's military weapons facilities has contributed toward creating a profound state of distrust that cannot be erased quickly or easily. Postponing the permanent repository and employing dry-cask storage of wastes on site would provide the time necessary for difficult social and political issues to be resolved.

Community‐Oriented Risk Communication in Recovery Efforts after Radiological Contamination/Accidents

The high levels of public worry and distrust of authorities, especially as associated with nuclear energy and radioactive waste, are well established in the literature and in the experience of risk communicators dealing with the general public. Though much of the experience with the heightened sense of worry that accompanies planned exposure situations associated with proposed radioactive/nuclear facilities (e.g., radioactive waste repositories, nuclear power plants, yet to be approved or built), there are also examples of existing exposure situations such as those following radiological accidents (e.g., Chernobyl or Fukushima). Some risk perception factors (e.g., trust, dread) are common to both planned and existing exposure situations, whereas others (e.g., volition, controllability) may be more prevalent in post‐accident exposure situations. Specific risk perceptions held by a given population and its various subgroups must be acknowledged and incorporated into successful risk communication and public engagement strategies. Post‐accident recovery programs and remediation projects, while in many countries requiring stakeholder and public acceptance to proceed, often fail to incorporate the specific risk perceptions held by the various affected groups in their risk communication and public involvement strategies. Such failures can foster a skeptical or angry public reaction, and hamper recovery in terms of both primary measures (radiological risk reduction interventions) and secondary measures (aiming at “return to normal life,” removal of stigmatization, health and well‐being, etc.). Existing exposure situations and the corresponding mitigations are often approached as local or national scale issues, but by their nature of following radiological emergencies or nuclear accidents, issues of multinational risk perceptions may also arise. Confronting risk perceptions featuring high levels of uncertainty, issue complexity, distrust, information asymmetry, and so forth, requires more interactive forms of governance and adaptive approaches to securing public acceptance. A suggestion is made to deploy an iterative continuous improvement model for incorporating specific risk perceptions into risk communication programs in concert with mutual‐gains‐based public engagement mechanisms.

Corrigendum to “Priming critical thinking: Simple interventions limit the influence of fake news about climate change on Facebook” [Global Environ. Change (5) (2019) 101964]

Perception of Ecological Risk to Water Environments

This paper examines lay and expert perceptions of the ecological risks associated with a range of human activities that could adversely affect water resource environments. It employs the psychometric paradigm pioneered in characterizing perceptions of human health risks, which involves surveys to obtain judgments from subjects about risk items in terms of several important characteristics of the risks. The paper builds on a previous study that introduced ecological risk perception. This second study employs a larger, more diverse sample, a more focused topic area, and comparisons between lay and expert judgments. The results confirm that a small set of underlying factors explain a great deal of variability in lay judgments about ecological risks. These have been termed Ecological Impact, Human Benefits, Controllability , and Knowledge. The results are useful in explaining subjects’ judgments of the general riskiness of, and need for regulation of, various risk items. The results also indicate several differences and areas of agreement among the lay and expert samples that point to potential key issues in future ecological risk management efforts for water resources.

If I Look at the Mass I Will Never Act: Psychic Numbing and Genocide

Most people are caring and will exert great effort to rescue individual victims whose needy plight comes to their attention. These same good people, however, often become numbly indifferent to the plight of individuals who are “one of many” in a much...

Bad Blood or the Elixir of Life? Perceived Risk of Blood Transfusions

Concern is mounting in Europe and North America about the low proportion of people who say they would accept a blood transfusion. For example, in the event of needing a transfusion, 46% of Europeans assert that they would accept blood from anybody, 25% would only...