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Context-Specific, Scenario-Based Risk Scales.

Authors
Yu, Michael ; Lejarraga, Tomás ; Gonzalez, Cleotilde

Reacting to an emergency requires quick decisions under stressful and dynamic conditions. To react effectively, responders need to know the right actions to take given the risks posed by the emergency. While existing research on scales focuses primarily on decision making in static environments with known risks, these scales may be inappropriate for conditions where the decision maker's time and mental resources are limited and may be infeasible if the actual risk probabilities are unknown. In this article, we propose a method to develop context-specific, scenario-based risk scales designed for emergency response training. Emergency scenarios are used as scale points, reducing our dependence on known probabilities; these are drawn from the targeted emergency context, reducing the mental resources required to interpret the scale. The scale is developed by asking trainers/trainees to rank order a range of risk scenarios and then aggregating these orderings using a Kemeny ranking. We propose measures to assess this aggregated scale's internal consistency, reliability, and validity, and we discuss how to use the scale effectively. We demonstrate our process by developing a risk scale for subsurface coal mine emergencies and test the reliability of the scale by repeating the process, with some methodological variations, several months later. [ABSTRACT FROM AUTHOR]/nCopyright of Risk Analysis: An International Journal is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Codebooks
SLR Criteria
Summary

Kendalss’s W, Kendall’s tau, Kendall’s tau-b

SLR Criteria
Summary

Online surveys

Summary

Kemeny rankingContext-Specific, Scenario-Based ScaleInternal consistencyScale reliability

Summary

Development of the Context-Specific, Scenario-Based Scales MethodTwo online Surveys1.one to test the developed methodImprovement of the Method2.Survey to test the methodological improvements.

SLR Criteria
Summary

Two surveys conducted with employees from the National Institute for Occupational Safety and Health (NIOSH) and subsurface coal mine inspectors.Eighteen NIOSH employees volunteered to pilot the initial survey and provided feedback. 61 mine inspectors were asked to complete the revised survey. Forty-seven mine inspectors were asked to complete the second survey.

SLR Criteria
Summary

How to develop the scale, propose measures to evaluate it, and consider how to use it effectively.

Summary

We were unable to gather more information about these possible causes.

SLR Criteria
Summary

We propose measures to assess this aggregated scale’s internal consistency, reliability, and validity, and we discuss how to use the scale effectively.

SLR Criteria
Summary

Rank different scenarios of coal mine emergencies by survey participants.The survey asked respondents how they would respond to a given mine emergency scenario, to rank order the scenarios, and then to provide demographic information about themselves.

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