Date of Conferral







John Schmidt


Understanding safety factors in construction is critical to reducing accident frequency and severity. Grounded in the safety performance model, this study was conducted to examine the impact of psychological capital (PsyCap), which consists of the shared variance of hope, efficacy, resilience and optimism, and Past, Present, and Future thinking perspectives, on safety climate and performance. A nonexperimental quantitative design was used to determine whether PsyCap and thinking perspectives of construction project employees predicted safety performance and/or moderated the relationship between safety climate and performance across construction sites in different countries. 411 construction employees were recruited via a multistage and clustering strategy and took part in the study. The PsyCap Questionnaire, MindTime Profile Inventory, Group-Level Safety Climate Scale, and Safety Performance Measure were used to assess PsyCap, thinking perspectives, safety climate, and safety performance. Multiple regression was used to determine the effects of PsyCap and thinking perspectives on safety climate and safety performance. Results showed that Future and Present thinking predicted PsyCap as well as safety climate and safety performance in the construction industry. Further, safety performance accounted for variations in hope and efficacy, two PsyCap components. Findings might be used to influence thinking perspectives of team leaders in designing training, developing employees' efficacy levels, and preventing accidents and fatalities on construction sites.