Development and validation of a fatigue assessment scale for U.S. construction workers

Mingzong Zhang, Emily H. Sparer, Lauren A. Murphy, Jack T. Dennerlein, Dongping Fang, Jeffrey N. Katz, Alberto J. Caban-Martinez

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Objective: To develop a fatigue assessment scale and test its reliability and validity for commercial construction workers. Methods: Using a two-phased approach, we first identified items (first phase) for the development of a Fatigue Assessment Scale for Construction Workers (FASCW) through review of existing scales in the scientific literature, key informant interviews (n=11) and focus groups (three groups with six workers each) with construction workers. The second phase included assessment for the reliability, validity, and sensitivity of the new scale using a repeated-measures study design with a convenience sample of construction workers (n=144). Results: Phase one resulted in a 16-item preliminary scale that after factor analysis yielded a final 10-item scale with two sub-scales ("Lethargy" and "Bodily Ailment"). During phase two, the FASCW and its subscales demonstrated satisfactory internal consistency (alpha coefficients were FASCW [0.91], Lethargy [0.86] and Bodily Ailment [0.84]) and acceptable test-retest reliability (Pearson Correlations Coefficients: 0.59-0.68; Intraclass Correlation Coefficients: 0.74-0.80). Correlation analysis substantiated concurrent and convergent validity. A discriminant analysis demonstrated that the FASCW differentiated between groups with arthritis status and different work hours. Conclusions: The 10-item FASCW with good reliability and validity is an effective tool for assessing the severity of fatigue among construction workers.

Original languageEnglish (US)
Pages (from-to)220-228
Number of pages9
JournalAmerican Journal of Industrial Medicine
Issue number2
StatePublished - Feb 1 2015


  • Construction worker
  • Fatigue
  • Reliability
  • Scale
  • Sensitivity
  • Validity

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health


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