The Portuguese long version of the Copenhagen Psychosocial Questionnaire II (COPSOQ II) – a validation study

Abstract Background Psychosocial risks are now widely recognised as one of the biggest challenges for occupational safety and health (OSH) and a major public health concern. The aim of this paper is to investigate the Portuguese long version of the Copenhagen Psychosocial Questionnaire II (COPSOQ II...

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Main Authors: Susel Rosário, Luís F. Azevedo, João A. Fonseca, Albert Nienhaus, Matthias Nübling, José Torres da Costa
Format: Article
Language:English
Published: BMC 2017-08-01
Series:Journal of Occupational Medicine and Toxicology
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12995-017-0170-9
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author Susel Rosário
Luís F. Azevedo
João A. Fonseca
Albert Nienhaus
Matthias Nübling
José Torres da Costa
author_facet Susel Rosário
Luís F. Azevedo
João A. Fonseca
Albert Nienhaus
Matthias Nübling
José Torres da Costa
author_sort Susel Rosário
collection DOAJ
description Abstract Background Psychosocial risks are now widely recognised as one of the biggest challenges for occupational safety and health (OSH) and a major public health concern. The aim of this paper is to investigate the Portuguese long version of the Copenhagen Psychosocial Questionnaire II (COPSOQ II), in order to analyse the psychometric properties of the instrument and to validate it. Methods The Portuguese COPSOQ II was issued to a total of 745 Portuguese employees from both private and public organisations across several economic sectors at a baseline and then 2 weeks later. Methodological quality appraisal was based on COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) recommendations. An analysis of the psychometric properties of the long version of COPSOQ II (internal consistency, intraclass correlation coefficient, floor and ceiling effects, response rate, missing values, mean and standard deviation, exploratory factor analysis) was performed to determine the validity and reliability of the instrument. Results The COPSOQ II had a response rate of 60.6% (test) and a follow-up response rate of 59.5% (retest). In general, a Cronbach’s alpha of the COPSOQ scales (test and retest) was above the conventional threshold of 0.70. The test-retest reliability estimated by the intraclass correlation coefficient (ICC) showed a higher reliability for most of the scales, above the conventional 0.7, except for eight scales. The proportion of the missing values was less than 1.3%, except for two scales. The average scores and standard deviations showed similar results to the original Danish study, except for eight scales. All of the scales had low floor and ceiling effects, with one exception. Overall, the exploratory factor analysis presented good results in 27 scales assuming a reflective measurement model. The hypothesized factor structure under a reflective model was not supported in 14 scales and for some but not all of these scales the explanation may be a formative measurement model. Conclusion The Portuguese long version of COPSOQ II is a reliable and valid instrument for assessing psychosocial risks in the workplace. Although the results are good for most of the scales, there are those that should be evaluated in greater depth in future studies. This instrument may contribute to the promotion of a healthy working environment and workforce, providing clear benefits for companies and employees.
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spelling doaj.art-5e51d4a1e8f047a9b106988e6a76f7012022-12-22T03:59:25ZengBMCJournal of Occupational Medicine and Toxicology1745-66732017-08-0112111710.1186/s12995-017-0170-9The Portuguese long version of the Copenhagen Psychosocial Questionnaire II (COPSOQ II) – a validation studySusel Rosário0Luís F. Azevedo1João A. Fonseca2Albert Nienhaus3Matthias Nübling4José Torres da Costa5Doctoral Programme in Occupational Safety and Health, Faculty of Engineering of the University of PortoCINTESIS – Centre for Research in Health Technologies and Information Systems and Information and Decision Sciences Department, Faculty of Medicine of the University of PortoDoctoral Programme in Occupational Safety and Health, Faculty of Engineering of the University of PortoDoctoral Programme in Occupational Safety and Health, Faculty of Engineering of the University of PortoFreiburg Research Centre for Occupational Sciences (FFAW GmbH)Doctoral Programme in Occupational Safety and Health, Faculty of Engineering of the University of PortoAbstract Background Psychosocial risks are now widely recognised as one of the biggest challenges for occupational safety and health (OSH) and a major public health concern. The aim of this paper is to investigate the Portuguese long version of the Copenhagen Psychosocial Questionnaire II (COPSOQ II), in order to analyse the psychometric properties of the instrument and to validate it. Methods The Portuguese COPSOQ II was issued to a total of 745 Portuguese employees from both private and public organisations across several economic sectors at a baseline and then 2 weeks later. Methodological quality appraisal was based on COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) recommendations. An analysis of the psychometric properties of the long version of COPSOQ II (internal consistency, intraclass correlation coefficient, floor and ceiling effects, response rate, missing values, mean and standard deviation, exploratory factor analysis) was performed to determine the validity and reliability of the instrument. Results The COPSOQ II had a response rate of 60.6% (test) and a follow-up response rate of 59.5% (retest). In general, a Cronbach’s alpha of the COPSOQ scales (test and retest) was above the conventional threshold of 0.70. The test-retest reliability estimated by the intraclass correlation coefficient (ICC) showed a higher reliability for most of the scales, above the conventional 0.7, except for eight scales. The proportion of the missing values was less than 1.3%, except for two scales. The average scores and standard deviations showed similar results to the original Danish study, except for eight scales. All of the scales had low floor and ceiling effects, with one exception. Overall, the exploratory factor analysis presented good results in 27 scales assuming a reflective measurement model. The hypothesized factor structure under a reflective model was not supported in 14 scales and for some but not all of these scales the explanation may be a formative measurement model. Conclusion The Portuguese long version of COPSOQ II is a reliable and valid instrument for assessing psychosocial risks in the workplace. Although the results are good for most of the scales, there are those that should be evaluated in greater depth in future studies. This instrument may contribute to the promotion of a healthy working environment and workforce, providing clear benefits for companies and employees.http://link.springer.com/article/10.1186/s12995-017-0170-9Psychosocial risksOccupational health and safetyRisk assessment (89/391/EEC framework directive)ValidationPortugal
spellingShingle Susel Rosário
Luís F. Azevedo
João A. Fonseca
Albert Nienhaus
Matthias Nübling
José Torres da Costa
The Portuguese long version of the Copenhagen Psychosocial Questionnaire II (COPSOQ II) – a validation study
Journal of Occupational Medicine and Toxicology
Psychosocial risks
Occupational health and safety
Risk assessment (89/391/EEC framework directive)
Validation
Portugal
title The Portuguese long version of the Copenhagen Psychosocial Questionnaire II (COPSOQ II) – a validation study
title_full The Portuguese long version of the Copenhagen Psychosocial Questionnaire II (COPSOQ II) – a validation study
title_fullStr The Portuguese long version of the Copenhagen Psychosocial Questionnaire II (COPSOQ II) – a validation study
title_full_unstemmed The Portuguese long version of the Copenhagen Psychosocial Questionnaire II (COPSOQ II) – a validation study
title_short The Portuguese long version of the Copenhagen Psychosocial Questionnaire II (COPSOQ II) – a validation study
title_sort portuguese long version of the copenhagen psychosocial questionnaire ii copsoq ii a validation study
topic Psychosocial risks
Occupational health and safety
Risk assessment (89/391/EEC framework directive)
Validation
Portugal
url http://link.springer.com/article/10.1186/s12995-017-0170-9
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