ERIC Number: EJ885678
Record Type: Journal
Publication Date: 2010-Jun
Abstractor: As Provided
Reference Count: 0
Rating Scales for Dystonia in Cerebral Palsy: Reliability and Validity
Monbaliu, E.; Ortibus, E.; Roelens, F.; Desloovere, K.; Deklerck, J.; Prinzie, P.; De Cock, P.; Feys, H.
Developmental Medicine & Child Neurology, v52 n6 p570-575 Jun 2010
Aim: This study investigated the reliability and validity of the Barry-Albright Dystonia Scale (BADS), the Burke-Fahn-Marsden Movement Scale (BFMMS), and the Unified Dystonia Rating Scale (UDRS) in patients with bilateral dystonic cerebral palsy (CP). Method: Three raters independently scored videotapes of 10 patients (five males, five females; mean age 13y 3mo, SD 5y 2mo, range 5-22y). One patient each was classified at levels I-IV in the Gross Motor Function Classification System and six patients were classified at level V. Reliability was measured by (1) intraclass correlation coefficient (ICC) for interrater reliability, (2) standard error of measurement (SEM) and smallest detectable difference (SDD), and (3) Cronbach's alpha for internal consistency. Validity was assessed by Pearson's correlations among the three scales used and by content analysis. Results: Moderate to good interrater reliability was found for total scores of the three scales (ICC: BADS = 0.87; BFMMS = 0.86; UDRS = 0.79). However, many subitems showed low reliability, in particular for the UDRS. SEM and SDD were respectively 6.36% and 17.72% for the BADS, 9.88% and 27.39% for the BFMMS, and 8.89% and 24.63% for the UDRS. High internal consistency was found. Pearson's correlations were high. Content validity showed insufficient accordance with the new CP definition and classification. Interpretation: Our results support the internal consistency and concurrent validity of the scales; however, taking into consideration the limitations in reliability, including the large SDD values and the content validity, further research on methods of assessment of dystonia is warranted.
Descriptors: Content Validity, Cerebral Palsy, Validity, Interrater Reliability, Rating Scales, Patients, Classification, Error of Measurement, Correlation, Content Analysis, Reliability, Measures (Individuals), Scores, Evaluation Methods, Neurological Impairments, Motor Reactions
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Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
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