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Psychometric evaluation of the functional walking test for children with cerebral palsy.

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posted on 22.11.2019, 17:25 by Aoife Quinn, Myra O'Regan, Frances Horgan

Purpose. This study examined the psychometric properties of the functional walking test (FWT). Method. Fifty-six subjects with cerebral palsy (CP) (21 females and 35 males, mean age 9 years 6 months, SD 3 years 9months, range 4-17 years) were assessed on two occasions, 6 months apart, using both the FWT and the gross motor function measure (GMFM). Results. Generalisability correlation coefficients (GCC) for all 11 items were high (0.91-0.99). Inter-rater reliability was also high with excellent consensus in the scores given by the eight raters (intra-class correlation coefficient and GCC 0.99). Intra-rater reliability was equally high (GCC 0.99). The internal consistency of the FWT was estimated using Cronbach's α as 0.95 and 0.94 at Time 1 and 2, respectively. The FWT had a high degree of correlation with the GMFM, when total scores were compared at Time 1 and 2 (Pearson's r = 0.86 and 0.87, n = 56, p < 0.01). The FWT also found statistically significant differences in total scores between the three Gross Motor Function Classification System (GMFCS) levels. The correlation between the FWT scores and GMFCS was -0.70 at Time 1 and -0.76 Time 2 (p < 0.01) indicating the construct validity of the FWT. Conclusions. This study has demonstrated that the FWT has sound psychometric properties and is valid and reliable in a sample population of ambulant children with CP.

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This is an electronic version of an article published in Quinn A, O'Regan M, Horgan F. Psychometric evaluation of the functional walking test for children with cerebral palsy. Disability and Rehabilitation is available online at:http://informahealthcare.com/doi/abs/10.3109/09638288.2011.573057

Published Citation

Quinn A, O'Regan M, Horgan F. Psychometric evaluation of the functional walking test for children with cerebral palsy. Disability and Rehabilitation. 2011 Apr 20. [Epub ahead of print]

Publication Date

20/04/2011

Publisher

Taylor & Francis

PubMed ID

21504407

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