Bayesian Confirmatory Factor Analysis of the Psychological Capital PCQ-12 Scale

Abstract

Abstract. Psychological Capital (PsyCap) is a key construct in psychological research across the lifespan. Although the 12-item Psychological Capital Questionnaire (PCQ-12) is among the most used scales to approach its measurement, its factor structure and reliability remain controversial, particularly in samples of adolescents. Data came from a cross-sectional survey administered to 267 Spanish adolescents, 59.9% girls ( Mage = 13.96, SD = 1.56). Confirmatory Factor Analyses (CFAs) in Mplus 8.6 were used to compare three competitive models (one factor, four correlated factors, and a second order structure) estimated with Bayesian methods. Although Self-Efficacy, Hope, and Optimism significantly explained their indicators, and their cross-loadings were not statistically significant, Resilience operated differently. We obtained evidence supporting the second-order structure. Also, it becomes clear that the scale has difficulties measuring Resilience in adolescents. Consequently, further research should explore new adaptations or alternative measures to overcome these limitations when researching adolescents.