[Development and evaluation of Comprehensive Work Ability Index scales]

Area of Science:

• Occupational Health
• Psychometrics
• Human Resources Management

Background:

• Work ability is a crucial factor in employee productivity and well-being.
• Existing measures may not comprehensively capture the multifaceted nature of work ability.
• Developing a robust instrument is essential for accurate assessment and intervention.

Purpose of the Study:

• To compile and develop the Comprehensive Work Ability Index (CWAI) scales.
• To create a self-rating instrument for evaluating employee work ability.
• To establish a standardized tool for comprehensive work ability assessment.

Main Methods:

• Development of CWAI scales based on work ability theory and standardized processes.
• Utilized random cluster sampling to select 198 factory employees.
• Employed item differentiation analysis, principal component analysis, factor analysis, and intra-item reliability for item selection.

Main Results:

• The Comprehensive Work Ability Index (CWAI) was constructed as a composite indicator of work ability.
• The CWAI integrates five key domains: self-rating, physiological, psychological, social functions, and work ability prediction.
• The developed scales align with the theoretical structure of work ability.

Conclusions:

• The CWAI scales demonstrate correspondence with the established theoretical framework of work ability.
• The study highlights the need for further assessment of the reliability and validity of the CWAI scales.
• Formal application of the CWAI scales is contingent upon successful validation and reliability testing.