2023 Fiscal Year Final Research Report
Combined effect of statistical and case-based victim information: Toward a framework for providing risk information
| Project/Area Number |
20H01756
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 10010:Social psychology-related
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| Research Institution | Doshisha University |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2024-03-31
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| Keywords | リスク認知 / リスクコミュニケーション / リスクガバナンス |
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| Outline of Final Research Achievements |
Toward a framework for providing risk information, the combined effects of statistical information and case-based information on perceived risk, as well as perceived effectiveness of risk countermeasures, were examined.The results of a series of surveys and experiments repeatedly demonstrate the strong influence of case-based information, while at the same time revealing that statistical information has little effect on people's perceptions. Once risk perceptions and perceived effectiveness of countermeasures were formed by case-based information, they were little modified by subsequent statistical information representative of the whole. There is no explicit benefit in combining the two types of information, and risk managers must understand the incompatibility between risk perception based on specific cases and quantitative risk assessment.
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| Free Research Field |
社会心理学
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| Academic Significance and Societal Importance of the Research Achievements |
事例情報に統計情報を付加することには認知への影響という観点では特別な利点は見いだせない。長い社会的認知の研究の中で、事例情報は統計情報よりの人の判断に強く影響すると言われていたが、本研究はリスクガバナンスの文脈の中で、統計情報には人々の認知の修正機能がないことを明らかにしたことに学術的な意義がある。リスクとは将来の見通しを“定量的”に表現するものである。しかし、本研究成果は、事例情報の偏りが人の判断・意思決定を大きく歪めてしまい、定量的な情報では是正されないという問題点を明らかにした。そういった問題点を踏まえたリスク情報環境の構築という方向性を提示したことに本研究成果の社会的意義がある。
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