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	Scala di Affaticamento di Chalder (Scala CF)	Inventario Multidimensionale della Fatica (MFI-20)
Campo	Infermieristica oncologica	Infermieristica oncologica
Famiglia	Process / pipeline	Process / pipeline
Anno di origine	1993	1995
Ideatore	Trudie Chalder	Eva Smets
Tipo	Patient self-report fatigue scale with physical and mental subscales	Patient self-report five-dimensional fatigue inventory
Fonte seminale	Chalder, T., Berelowitz, G., Pawlikowska, T., et al. (1993). Development of a fatigue scale. J Psychosom Res, 37(2), 147–153.	Smets, E. M., Garssen, B., Bonke, B., & De Haes, J. C. (1995). The Multidimensional Fatigue Inventory (MFI-20): a short questionnaire for measuring fatigue. J Psychosom Res, 39(3), 315–325.
Alias	CFS, Chalder Fatigue Scale, Fatigue Scale	MFI, MFI-20
Correlati	5	5
Sintesi	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.	The Multidimensional Fatigue Inventory is a 20-item self-report instrument that comprehensively measures five distinct dimensions of fatigue: general fatigue, physical fatigue, reduced activity, reduced motivation, and mental fatigue. Developed by Smets and colleagues in 1995, the MFI-20 is grounded in a theoretical model distinguishing fatigue phenomenology from behavioral and cognitive consequences, making it particularly valuable for research examining fatigue mechanisms and interventions targeting specific fatigue dimensions.