How does strength use relate to posttraumatic growth in health care workers during the COVID-19 pandemic? The mediating role of self-efficacy and optimism.

Objectives: Research on the use of strengths has suggested that it can promote individuals' psychological health and well-being. This study aimed to examine the relationship between strength use and posttraumatic growth (PTG) in the context of COVID-19 pandemic among health care workers, as well as the mediating role of psychological capital in this relationship.

Method: A total of 740 health care workers completed the Strengths Use Scale, the Positive Psychological Capital Scale, and the Posttraumatic Growth Inventory. Descriptive, correlational, and multiple mediation analyses were performed to analyze the data.

Results: Participants of 55.9% reported experiencing significant PTG during the COVID-19 pandemic. The study found a significant and positive correlation between strength use, psychological capital, and PTG. In addition, the study found that self-efficacy and optimism, but not hope and resilience, mediated the linkage between strength use and PTG linked to the COVID-19 pandemic. The results also indicated that self-efficacy and optimism had equal importance in the strength use-PTG link.

Conclusions: The study concludes that strength use is positively related to PTG in the context of the COVID-19 pandemic through the mediating roles of self-efficacy and optimism. (PsycInfo Database Record (c) 2025 APA, all rights reserved).