OBJECTIVE: The main aim of this study was to examine the dimensionality and psychometric qualities of a new 10-item fatigue measure, the Fatigue Assessment Scale (FAS). METHODS: As part of a longitudinal study, the respondents, all workers with at least 20 working hours per week, completed the FAS, four related fatigue measures, a depression questionnaire, and an emotional stability scale. RESULTS: The FAS had a high internal consistency. The pattern of correlations and factor analysis showed good convergent and divergent validity. The FAS correlated strongly with the other fatigue scales. In a factor analysis of the five fatigue questionnaires, the FAS had the highest factor loading on a clear one-factor solution. Moreover, factor analyses revealed that fatigue, on the one hand, and depression and emotional stability, on the other hand, are separate constructs. Finally, it was shown that 8 out of the 10 FAS items were unbiased concerning gender; two had a uniform bias. CONCLUSIONS: The FAS represents a potentially valuable assessment instrument with promising internal consistency reliability and validity. Gender bias in the FAS does not have consequences for use of the FAS.
OBJECTIVE: The main aim of this study was to examine the dimensionality and psychometric qualities of a new 10-item fatigue measure, the Fatigue Assessment Scale (FAS). METHODS: As part of a longitudinal study, the respondents, all workers with at least 20 working hours per week, completed the FAS, four related fatigue measures, a depression questionnaire, and an emotional stability scale. RESULTS: The FAS had a high internal consistency. The pattern of correlations and factor analysis showed good convergent and divergent validity. The FAS correlated strongly with the other fatigue scales. In a factor analysis of the five fatigue questionnaires, the FAS had the highest factor loading on a clear one-factor solution. Moreover, factor analyses revealed that fatigue, on the one hand, and depression and emotional stability, on the other hand, are separate constructs. Finally, it was shown that 8 out of the 10 FAS items were unbiased concerning gender; two had a uniform bias. CONCLUSIONS: The FAS represents a potentially valuable assessment instrument with promising internal consistency reliability and validity. Gender bias in the FAS does not have consequences for use of the FAS.
Authors: Torkjell Nøstdahl; Tomm Bernklev; Olav M Fredheim; Johanna S Paddison; Johan Raeder Journal: Qual Life Res Date: 2018-11-30 Impact factor: 4.147
Authors: Harry C Alexander; Cindy H Nguyen; Matthew R Moore; Adam S Bartlett; Jacqueline A Hannam; Garth H Poole; Alan F Merry Journal: Surg Endosc Date: 2019-04-01 Impact factor: 4.584
Authors: Melissa S Y Thong; Floortje Mols; Xin S Wang; Valery E P P Lemmens; Tineke J Smilde; Lonneke V van de Poll-Franse Journal: Eur J Cancer Date: 2013-03-01 Impact factor: 9.162