Pediatric Physical Therapy

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Pediatric Physical Therapy:
doi: 10.1097/PEP.0b013e31824c94ca
Research Article

Concurrent Validity and Reliability of the Pediatric Evaluation of Disability Inventory-Computer Adaptive Test Mobility Domain

Dumas, Helene M. PT, MS; Fragala-Pinkham, Maria A. PT, DPT, MS

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Abstract

Purpose: To examine concurrent validity, item-specific reliability, and score distributions of the new Pediatric Evaluation of Disability Inventory-Computer Adaptive Test (PEDI-CAT) Mobility domain with the original PEDI Functional Skills (FS) Mobility Scale.

Methods: Thirty-five parents of children with neurodevelopmental disabilities completed the PEDI-CAT on a computer and the paper PEDI FS via interview.

Results: Strength of association between the PEDI-CAT Mobility domain and PEDI FS Mobility Scale scores was good to excellent (r = 0.82; P < .001). Intraclass correlation coefficients ranged from .3390 to 1.000, and agreement ranged from 60% to 100% for 8 specific items. No child had the minimum score on either test, whereas 9 children (26%) had a maximum score on the PEDI FS Mobility Scale.

Conclusions: This study provides evidence for potential users that the concurrent validity, reliability, and score distribution for the PEDI-CAT Mobility domain are adequate for use with children with varied diagnoses and throughout the pediatric age span.

© 2012 Lippincott Williams & Wilkins, Inc.

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