Work 62 (2019) 175–184 DOI:10.3233/WOR-192853 IOS Press 175 Psychometric properties of a medium version of the Copenhagen Psychosocial Questionnaire (COPSOQ II) for southern Brazil Inˆ es Alessandra Xavier Lima a,b, , Gabriel Oscar Cremona Parma c , Teresa Margarida Crato Patrone Cotrim d and Antonio Renato Pereira Moro a a Post-Graduation Program in Production Engineering, Universidade Federal de Santa Catarina, Florian´ opolis, Santa Catarina, Brazil b Research Group on Public Health, Universidade do Sul de Santa Catarina, Palho¸ ca, Santa Catarina, Brazil c Post-Graduation Program in Health Science, Universidade do Sul de Santa Catarina, Palho¸ ca, Santa Catarina, Brazil d Faculty of Human Kinetics, Universidade de Lisboa, Lisbon, Portugal Received 5 October 2018 Accepted 8 December 2018 Abstract. BACKGROUND: The emerging frequency of Behavioural Mental Health Disorders among Brazilian workers and the recent legal demand for analysis of psychosocial risks in the workplace highlight the importance of standardizing measures to assess these risks as a way to allow identification and proper comparison among different populations. OBJECTIVE: To assess the psychometric properties of the COPSOQ II questionnaire medium version for southern Brazil, based on the Spanish medium-length version of COPSOQ-ISTAS21 II. METHODS: A sample of 426 workers from a university in southern Brazil answered the model under study online. Content validity and internal consistency were analyzed through Confirmatory Factor Analysis (AFC) and Exploratory Factor Analysis (AFE) and Cronbach’s coefficient. RESULTS: The study model presented a response rate of 48.46%. The analyses indicated the possibility of the instrument to present reliability and validity of content. From the AFE, the final model consisted of 13 dimensions and 70 items, and presented a Cronbach’s alpha of 0.82, which is considered a good internal consistency. CONCLUSIONS: The results showed that the final model of this study presents acceptable levels of reliability and internal validity for the application in Brazil, along with the groups of workers that resemble the participants of the research, to assess psychosocial risks in the workplace. Keywords: Occuppational health, Occupational risks, surveys and questionnaires, Psychometry Address for correspondence: Inˆ es Alessandra Xavier Lima, Rua J ´ ulio Dias, 564, apto 205, Bairro Coqueiros, CEP 88080-060, Florian´ opolis, Santa Catarina, Brasil. Tel.: +55 48 99961 4371; E-mail: inesaxlima1@gmail.com. 1. Introduction Psychosocial risks (related to work organization and working relationships) and their consequences (sleep / musculoskeletal / cardiovascular disorders, 1051-9815/19/$35.00 © 2019 – IOS Press and the authors. All rights reserved