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Reliability and validity of the work role functioning questionnaire (Spanish version).

Jose M Ramada1, Consol Serra, Benjamin C Amick

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The Spanish Work Role Functioning Questionnaire (WRFQ-SpV) is reliable and valid for assessing work functioning in diverse working populations. This tool aids in occupational health and rehabilitation research.

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Area of Science:

  • Occupational health psychology
  • Psychometrics
  • Health services research

Background:

  • The Work Role Functioning Questionnaire (WRFQ) is a valuable tool for assessing work functioning.
  • Cross-cultural adaptation and validation are crucial for its use in diverse populations.
  • The Spanish version (WRFQ-SpV) has undergone adaptation, but its psychometric properties require further evaluation in a general working population.

Purpose of the Study:

  • To examine the reliability and validity of the adapted Work Role Functioning Questionnaire-Spanish Version (WRFQ-SpV).
  • To evaluate the measurement properties of the WRFQ-SpV in a general working population, including individuals with and without physical and mental health issues.

Main Methods:

  • A cross-sectional study was conducted with 455 active workers.
  • Reliability was assessed using Cronbach's alpha (internal consistency) and Standard Error of Measurement (SEM).
  • Validity was evaluated through confirmatory factor analyses (structural validity) and hypothesis testing (construct validity), guided by COSMIN principles.

Main Results:

  • The WRFQ-SpV demonstrated excellent internal consistency (α = 0.98) and acceptable measurement error (SEM = 7.10).
  • Confirmatory factor analysis supported the original five-factor structure.
  • Construct validity was confirmed through hypothesis testing, showing expected differences between groups and moderate to strong correlations with work ability.

Conclusions:

  • The WRFQ-SpV is a reliable and valid instrument for measuring health-related work functioning in occupational health and rehabilitation settings.
  • It can be utilized to monitor improvements in work functioning following rehabilitation or accommodation programs.
  • Further longitudinal studies are recommended to assess the questionnaire's responsiveness.