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

Am J Ind Med. 2015 Feb;58(2):220-8. doi: 10.1002/ajim.22411.


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.

Keywords: construction worker; fatigue; reliability; scale; sensitivity; validity.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.
  • Validation Study

MeSH terms

  • Adult
  • Construction Industry / standards*
  • Fatigue / diagnosis*
  • Focus Groups
  • Humans
  • Male
  • Middle Aged
  • Occupational Diseases / diagnosis*
  • Pilot Projects
  • Reproducibility of Results
  • Symptom Assessment / methods*
  • United States
  • Young Adult