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Abstract
Objectives: Validity of the Early Clinical Assessment of Balance (ECAB), to monitor postural stability in children with cerebral palsy (CP), was evaluated.
Methods: 410 children with CP, 1.5 to 5 years old, participated. Physical therapists scored children on the Movement Assessment of Infants Automatic Reactions section and Pediatric Balance Scale. Through consensus, researchers selected items from both measures to create the ECAB. Content and construct validity were examined through item correlations, comparison of ECAB scores among motor ability, age and gender groups and correlations with the Gross Motor Function Measure 66 basal and ceiling (GMFM-66-B&C).
Results: Internal consistency was high (Cronbach’s alpha = 0.92). ECAB differed significantly among motor ability, children <31 months old scored lower than older children, but there was no difference between boys and girls. ECAB and GMFM-66-B&C scores correlated strongly (r = 0.97).
Conclusion: Validity of the ECAB was supported. Reliability and responsiveness need study.
Acknowledgments
We wish to express our appreciation to all the children and their families who participated in this study. We also want to acknowledge all the rest of the Move & PLAY research team including Peter Rosenbaum, MD; Barbara Stoskopf, RN, MHSc; Audrey Wood, PT, MS; Barbara Sieck Taylor, parent consultant; Tina Hjorngaard, parent consultant; and all the therapist assessors and interviewers from the United States and Canadian test sites.