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Hum Mov Sci. 2013 Jun;32(3):485-97. doi: 10.1016/j.humov.2013.02.007. Epub 2013 May 28.

The psychometric properties of the McCarron Assessment of Neuromuscular Development as a longitudinal measure with Australian youth.

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Institute for Health Research, University of Notre Dame Australia, PO Box 1225, Fremantle, Western Australia 6959, Australia.


The importance of considering age and sex differences in the assessment of motor performance has been largely overlooked. This study examines the psychometric properties of the US developed McCarron Assessment of Neuromuscular Development (MAND) using data from a longitudinal sample of 986 Australian youth at 10, 14 and 17 years. A key finding was the sex and age interaction of the Neuromuscular Developmental Index (NDI) (F=121.46, p<.001). Males had a significantly lower mean NDI score at 10 years and the females had a lower score at 17 years. The factor structure differed from the US samples (McCarron, 1997) at each age and between males and females. The sex specific analyses showed that the underlying structure was more complex for younger females. Although the MAND remains a useful test of motor performance for Australian children, further consideration is warranted regarding sex differences, the relevance of the US based normative tables and factor structures.

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