AIM: The aim of this study was to investigate the validity and reliability of the Movement Assessment Battery for Children-2 Checklist (MABC-2). METHOD: Teachers completed the Checklist for 383 children (age range 5-8y; mean age 6y 9mo; 190 males; 193 females) and the parents of 130 of these children completed the Developmental Disorder Coordination Questionnaire 2007 (DCDQ'07). All children were assessed with the MABC-2 Test. The internal consistency of the 30 items of the Checklist was determined to measure reliability. Construct validity was investigated using factor analysis and discriminative validity was assessed by comparing the scores of children with and without movement difficulties. Concurrent validity was measured by calculating correlations between the Checklist, Test, and the DCDQ'07. Incremental validity was assessed to determine whether the Checklist was a better predictor of motor impairment than the DCDQ'07. Sensitivity and specificity were investigated using the MABC-2 Test as reference standard (cut-off 15th centile). RESULTS: The Checklist items measure the same construct. Six factors were obtained after factor analysis. This implies that a broad range of functional activities can be assessed with the Checklist, which renders the Checklist useful for assessing criterion B of the diagnostic criteria for DCD. The mean Checklist scores for children with and without motor impairments significantly differed (p<0.001). The scores for the Checklist/Test and DCDQ'07 were significantly correlated (r(S) =-0.38 and p<0.001, and r(S) =-0.36 and p<0.001, respectively). The Checklist better predicted motor impairment than the DCDQ'07. Overall, the sensitivity was low (41%) and the specificity was acceptable (88%). INTERPRETATION: The Checklist meets standards for validity and reliability.
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