Translation, cross-cultural adaptation and psychometric properties of the Jenkins Sleep Scale in a sample of Portuguese shift workers

• Autor(a) principal: Reis, Cátia
• Data de Publicação: 2014
• Outros Autores: Mestre, Catarina, Tecedeiro, Miguel Moreira Vaz, Paiva, Teresa
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10400.12/3494
• topic: Jenkins Sleep Scale; Shift-work; Sleep; Translation; Escala de Sono de Jenkins; Trabalhadores por turnos; Sono; Tradução

The aim of this work was to translate the Jenkins Sleep Scale into Portuguese, to culturally adapt it to the Portuguese culture and to assess its stability, internal consistency and convergent validity among a group of shift workers (airline pilots). The scale was validated in a sample of 456 airline pilots. The original Jenkins Sleep Scale was translated and culturally adapted to the Portuguese Culture using recommended procedures. The psychometric methods used were confirmatory factor analysis using structural equation modeling, Cronbach’s α coefficients, and intra-class correlation coefficients. The results confirmed the JSS-PT has a single factor model, like the original version, with the Comparative Fit Index and the Tucker- Lewis Index suggesting a very good fit. Cronbach’s α coefficient was .84 for the extracted factor. Pearson bivariate correlations were performed on 75 participants, with an interval of 1 week for testretest purposes with intra-class correlation of .99. Convergent validation showed significant correlations (r=.57). The validity and reliability of this scale was established, enabling it to be used within the Portuguese language speakers. Nevertheless, this study should be replicated in other samples, with other forms of validity being explored.