A Quantitative Approach to Movement Skill Assessment for Children with Mental Retardation

in Adapted Physical Activity Quarterly
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This study examined the psychometric properties of Ulrich’s (1988) Actual Physical Competence Scale for children with mental retardation. A total of 139 children with MR, 7 to 13 years of age participated. Confirmatory factor analyses indicated that a multidimensional model of skill assessment captures the motor performance of those with MR more accurately than a unidimensional model. Indices of goodness of fit for the multidimensional model were GFI = .91, RMSEA = .09, (χ2/df) = 2.15, and CFI = .93. Test-retest reliability and internal consistency for the total test battery was ICC = .91 and α = .62, respectively. When evaluating movement skills of children with mental retardation, a multidimensional model incorporating both locomotor and object control skills is recommended.

Joonkoo Yun is with the Department of Exercise and Sport Science at Oregon State University in Corvallis, OR 97331. E-mail: jk.yun@orst.edu. Deborah Shapiro is with the Department of Kinesiology and Health at Georgia State University, Atlanta.

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