Confirmatory Factor Analysis of the Perceived Stress Scale among Physicians of Obstetrics and Gynaecology in Pakistan
Abstract
Valid psychological assessments of stress play a crucial role in measuring, managing, and preventing stress-related mental health conditions. However, there is lack of validation study on perceived stress scale (PSS-10) among physicians of Obstetrics and Gynaecology as well the relationship between physicians' stress levels and factors such as number of night calls per week, age, and hospital location remains unexplored in existing literature, highlighting a significant gap in research. Hence, the present study investigated the factor structure, role of demographics, and the reliability of the PSS-10 within a cohort of Obs and Gynae physicians (N = 347). The three competing measurement models of the PSS-10 were scrutinized using Confirmatory factor analysis with one model labelled as unidimensional factor, second model with two correlated factors, and third bi-factorial model. The findings endorsed the bifactor structure with an adequate model fit indices (Root Mean Square Error of Approximation = .05, Comparative Fit Index = .95, Tuker Lewis Index = .96, Goodness of Fit Index = .96). The scale exhibited commendable internal consistency reliability in the total PSS-10 scores as well as in its individual subscales. The PSS-10 was validated by correlating it with a team decision-making questionnaire that gauged aspects such as team support, learning, and quality services. This study lends strong support for PSS-10 as a reliable tool to enhance well-being and resilience in healthcare professionals.
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