Psychometric properties of the movement assessment battery for children-checklist as a screening instrument for children with a developmental co-ordination disorder.
BACKGROUND
The Checklist of the Movement Assessment Battery for Children (M-ABC) was developed to screen children for movement difficulties in the school situation. However, the psychometric properties of the Checklist have not been investigated in detail.


OBJECTIVE
The psychometric properties of the M-ABC Checklist were investigated including its usefulness as a screening instrument.


METHODS
A group of 120 children, 6 to 11 years old, randomly selected from mainstream schools and a group of 64 children, 6 to 9 years old, referred for assessment of their motor functioning.


METHODS
A reliability analysis was performed to investigate whether the 48 items of the Checklist measure the same construct. Construct validity was investigated by means of a factor analysis. And lastly, the sensitivity, specificity and positive predictive value of the Checklist were investigated by comparing the performance of children on both the Test and Checklist of the M-ABC.


RESULTS
The items of the Checklist measure the same construct. Seven factors were obtained after factor analysis, revealing that the Checklist measures a broad range of motor skills. The Checklist met the standards for sensitivity in all age groups, except in the 8-year-old group, where too many children with motor problems were not detected. With the exception of the 6-year-old children, specificity was poor. The positive predictive value was acceptable, except for the 7-year-old children.


CONCLUSIONS
The Checklist proved to meet standards for reliability and most aspects of validity. Its use by teachers for screening children with movement difficulties can be recommended.
Schoemaker
Marina M
MM
Institute of Human Movement Science, University of Groningen, The Netherlands. M.M.Schoemaker@ppsw.rug.nl
Smits-Engelsman
Bouwien C M
BC
Jongmans
Marian J
MJ
D002648:Child; D002658:Developmental Disabilities / Q000175:diagnosis* / Q000523:psychology; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000379:methods; D019957:Motor Skills Disorders / Q000175:diagnosis* / Q000523:psychology; D009068:Movement; D011594:Psychometrics; D015203:Reproducibility of Results