Abstract
Introduction: The aim of this study is to test the factorial structure and the internal consistency of the 12-items General Health Questionnaire adapted to work-related psychological distress (GHQW). Methods: A validated French version of the GHQ-12 was used and transformed to remind of the occupational context. A sample of 1014 workers completed the GHQW. Internal consis- tency was assessed by Cronbach’s α coefficient. The factorial structure was extracted with an exploratory factorial analysis (EFA). Results: The EFA run on the data yield to a one- factor structure explaining 60.5% of the total variance of the scale. The Cronbach’s alpha showed a very good internal consistency of the scale (α = 0.94). Conclusion: The findings support that the GHQW is a reliable and valid instrument for measuring work-related psychological distress in workers. This work-related version could find some applications in epide-miological research at work, in the study of psychosocial risk factors and in the occupational health physi- cian’s daily activity.
Highlights
The 12-item General Health Questionnaire (GHQ-12) is a self-report measure of psychological morbidity, intended to detect psychiatric disorders in community settings and non-psychiatric settings [1]. It is widely used in clinical practice, epidemiological research and for research in psychology [2,3,4]
The current study aimed at exploring the structure and reliability of the GHQ-12 adapted to a work-related context (GHQW)
The findings reported in the current study support the psychometric appropriateness of the GHQW
Summary
The 12-item General Health Questionnaire (GHQ-12) is a self-report measure of psychological morbidity, intended to detect psychiatric disorders in community settings and non-psychiatric settings [1]. It is widely used in clinical practice, epidemiological research and for research in psychology [2,3,4]. The 12-items version, due to its brevity, is probably the most popular and so, has been extensively evaluated in terms of its validity and reliability as a one-dimensional indicator of the severity of psychological morbidity [5,6,7,8,9]. Each item is rated on a four-point scale, using one of two most common scoring methods: dichotomous (0-0-1-1) or Likert-like type (0-1-2-3)
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