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The Brazilian version of the work role functioning questionnaire 2.0 with 5 items (WRFQ-5) has adequate measurement properties. | LitMetric
Background : The Work Role Functioning Questionnaire 2.0 (WRFQ 2.0) is an important instrument within the context of occupational health, consisting of 27 items and 5 domains. In addition, a short version of WRFQ 2.0 with 5 items (WRFQ-5) was proposed, showing agreement with the long version. Thus, we aimed to confirm the number of factors of the WRFQ-5 short version and to verify the structural, construct, and criterion validity, reliability, internal consistency, and analysis of ceiling and floor effects of the Brazilian version of the WRFQ-5 in a general workers population.Methods : A questionnaire validation and measurement properties study. We evaluated the internal structure of the WRFQ-5 by means of confirmatory factor analysis. Construct validity was assessed by correlating the WRFQ-5 with the Numerical Pain Rating Scale (NPRS), Work Ability Index (WAI), and Self-Estimated Functional Inability because of Pain (SEFIP-work). Criterion validity was assessed by correlating the WRFQ-5 with the 5 domains of the WRFQ 2.0. Test-retest reliability and internal consistency were also evaluated.Results : We observed positive correlations (p < .05) between the WRFQ-5 and the WAI (rho = 0.161 to 0.308) and negative correlations (p < .05) between the WRFQ-5 and the SEFIP-work (rho = -0.293). The WRFQ-5 significantly and positively correlates with the 5 domains of WRFQ 2.0 (rho = 0.742 to 0.830). The test-retest reliability of the WRFQ-5 was excellent (ICC = 0.935) and the internal consistency was adequate (Cronbach's alpha = 0.938). We did not observe ceiling and floor effects.Conclusion : The one-dimensional internal structure of the WRFQ-5 in Brazilian Portuguese has a valid internal structure and construct, as well as adequate reliability and internal consistency.
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