Further validation of the Multidimensional Fatigue Inventory in a US adult population sample

摘要: The Multidimensional Fatigue Inventory (MFI-20) was developed in 1995. Since then, it has been widely used cancer research and cancer-related illnesses but never validated fatiguing or a large US population-selected sample. In this study, we sought to examine the reliability validity of MFI-20 population state Georgia, USA. Further, assessed whether could serve as complementary diagnostic tool chronically fatigued unwell populations. data derive from cross-sectional population-based study investigating prevalence chronic fatigue syndrome (CFS) Georgia. sample comprised three groups: CFS-like (292), (269), well (222). Participants completed along with several other measures psychosocial functioning, including Medical Outcomes Survey Short Form-36 (SF-36), Zung Self-Rating Depression Scale (SDS), Spielberger State-Trait Anxiety (STAI). We five subscales using criteria: inter-item correlations, corrected item-total internal consistency (Cronbach's alpha coefficients), construct validity, discriminant (known-group) floor/ceiling effects, convergent through correlations SF-36, SDS, STAI instruments. Averaged ranged 0.38 0.61, indicating no item redundancy. Corrected for all were greater than 0.30, Cronbach's coefficients achieved an acceptable level 0.70. No significant effect observed. Factor analysis demonstrated factorial complexity. also distinguished clearly between groups on subscales. Furthermore, depression anxiety (STAI), functional impairment (SF-36) strong validity. This provides support valuable when It suggests that illnesses, such CFS.