Chalder Fatigue Scale
The Chalder Fatigue Scale is an 11-item brief self-report instrument measuring physical and mental fatigue, developed by Trudie Chalder and colleagues at St. Bartholomew's Hospital, London, in 1993. Originally designed for chronic fatigue syndrome (myalgic encephalomyelitis/ME) research, the CFS has been extensively validated across cancer populations, chronic illness, and general populations. The scale offers two scoring options: continuous 0–33 scale for severity measurement or bimodal 0–11 scoring for caseness determination, making it versatile for both research and clinical screening.
Source record
Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.
- Chalder, T., Berelowitz, G., Pawlikowska, T., et al. (1993). Development of a fatigue scale. J Psychosom Res, 37(2), 147–153. · DOI 10.1016/0022-3999(93)90081-P
- Chalder, T., Power, M. J., & Wessely, S. (1996). Chronic fatigue in the community: 'The prevalence and use of health care. J Psychosom Res, 41(2), 197–103. · URL
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