隧道工人认知偏差对其不安全行为的影响研究:风险感知的中介效应

Effects of tunnel workers' cognitive bias on their unsafe behaviors:mediating role of risk perception

为预防隧道工人不安全行为,探究隧道工人认知偏差如何影响工人不安全行为及该过程中风险感知的作用。基于既有文献构建工人认知偏差、风险感知和工人不安全行为之间关系的概念模型,结合隧道建造情境设计测量量表并开展问卷调研;选用回归分析检验构建的概念模型探究工人认知偏差对工人不安全行为的影响。研究结果表明:隧道工人认知偏差可正向影响工人不安全行为(效应值为0.713),也可负向影响工人的风险感知(效应值为-0.607);隧道工人的风险感知可负向影响工人不安全行为(效应值为-0.617),且在工人认知偏差与工人不安全行为关系中起到部分中介效应(效应值为0.334)。

To prevent tunnel workers'unsafe behaviors,the effects of workers'cognitive biases on their unsafe behaviors and the role of risk perception in this process were investigated.Based on the literature,a conceptual model describing the relationship between workers'cognitive bias,risk perception,and unsafe behaviors was proposed.Moreover,measurement scales in tunnel construction scenarios were designed and a questionnaire survey was conducted.Then,the proposed conceptual model using regression analysis was used to investigate the effects of workers'cognitive bias on their unsafe behaviors.The results showed tunnel workers'cognitive bias positively affected their unsafe behaviors(effect value=0.713)and negatively impacted their risk cognition(effect value=-0.607).Workers'risk cognition negatively affected their unsafe behaviors(effect value=-0.617)and partially mediated the relationship between workers'cognitive bias and their unsafe behaviors(effect value=0.334).