Validity and Reliability of the Portuguese Version of the Connor–Davidson Resilience Scale of 10 Elements for Young University Students

Background: Resilience is an important aspect of mental health in young people, which has become more relevant after the COVID-19 pandemic. It is therefore of paramount importance to have valid and reliable instruments that measure the globality of this aspect. One of the instruments that has been shown to have good psychometric properties and which has been widely adapted in several languages is the Connor–Davidson resilience scale, composed of 10 elements (10-item CD-RISC). Aim: The aim of this study was to evaluate the validity and reliability of the Portuguese version of the 10-item CD-RISC among young university students. Methods: a cross-sectional observational study of psychometric validation was conducted with a sample of 206 university students. Results: Good and adequate fit indices were obtained for the confirmatory factor analysis (CFA): Standardized Root-Mean-Square Residual [SRMR] = 0. 056; comparative fit index [CFI] = 0.958; and the Tucker–Lewis index [TLI] = 0.946. It also showed an average degree of convergent validity with the Depression, Anxiety and Stress Scale (DASS-21) and the General Health Scale (SF-36), and its internal consistency was good (Cronbach’s alpha = 0.842) with a range of factor loadings between 0.42 and 0.77. Conclusions: the results show that the 10-item CD-RISC is a valid, reliable scale to measure resilience among young Portuguese university students.