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Rasch validation of the Activities-specific Balance Confidence Scale and its short versions in patients with Parkinson's disease

Franchignoni, Franco ; Giordano, Andrea ; Ronconi, Gianpaolo ; Rabini, Alessia ; Ferriero, Giorgio

Journal of rehabilitation medicine, 2014-06, Vol.46 (6), p.532-539 [Periódico revisado por pares]

Sweden

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  • Título:
    Rasch validation of the Activities-specific Balance Confidence Scale and its short versions in patients with Parkinson's disease
  • Autor: Franchignoni, Franco ; Giordano, Andrea ; Ronconi, Gianpaolo ; Rabini, Alessia ; Ferriero, Giorgio
  • Assuntos: Accidental Falls ; Activities of Daily Living ; Aged ; Aged, 80 and over ; Falls ; Fear ; Female ; Humans ; Item difficulty ; Male ; Measurement ; Middle Aged ; Parkinson Disease - physiopathology ; Parkinson Disease - psychology ; Parkinson's disease ; Postural Balance ; Psychometrics ; Rasch model ; Reproducibility of Results
  • É parte de: Journal of rehabilitation medicine, 2014-06, Vol.46 (6), p.532-539
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: To analyse in patients with Parkinson's disease the psychometric performance of the Activities-specific Balance Confidence scale (ABC) and its 3 short versions, using both a classical test theory approach and Rasch analysis. A sample of 217 patients with Parkinson's disease was assessed by ABC and the 3 short versions: Berg Balance Scale, Fear of Falling Measure, and the Unified Parkinson's Disease Rating Scale. Cronbach's α was 0.95 in ABC, and ranged from 0.88 to 0.90 in its short versions. At Rasch analysis the 11 original rating categories were collapsed to 5 levels. In ABC 15 out of 16 items fitted the Rasch model. The ABC showed high correlation only with Fear of Falling Measure (r = 0.85), and excellent correlation with its short versions (r > 0.93). The 3 short versions showed a limited range of item difficulty estimates, low reliability levels, floor effect, a mismatch between mean item difficulty and mean ability of the patients. In patients with Parkinson's disease: (i) the ABC has an adequate unidimensionality; (ii) the selection of its items is satisfactory, although there is room for some minor refinement; (iii) the 0-10 rating scale should be simplified, and a 5-level response format seems able to improve the measurement qualities of the scale; (iv) the 3 short versions showed some psychometric limitations in comparison with the ABC.
  • Editor: Sweden
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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