To obtain fine and gross movement cluster scores from the MOT 4-6 and M-ABC additional aggregated scores were required.
Children's M-ABC mean performance was 5 (SD = 4.6) with a range between 0 and 21.
Agreement on movement skill performance classification between MOT 4-6 and M-ABC
A Cohen's kappa of 0.67 (95% CI between 0.41 and 0.93) provided moderate support for identification of motor difficulties between the MOT 4-6 and the M-ABC. The composite proportion of agreement between the identification of the MOT 4-6 and the M-ABC was 90% (95% CI between 77% and 96%).
Values of correspondence within and between the MOT 4-6 and M-ABC scores and subscores
Correlations within and between the various scores and subscores of the MOT 4-6 and M-ABC are shown in Table 4.
When the group was split at the 15th %ile on the M-ABC, with the exception of PDMS Total and Manual Dexterity subscale of the PDMS, no significant differences between the two groups were found.
These will be discussed along with issues relating to the use of the M-ABC for a young group of referred children with motor difficulties.
The variability in the children's performances on the M-ABC (as shown in Figure 1) corroborates the heterogeneity of the group (Missiuna 1994, Sellers 1995).
The M-ABC was used to divide the group as described.
One major difference between the NDPA and the M-ABC is in the requirement to maintain performance.
A number of studies have reported issues with the M-ABC, for example, High et al (2000) reported that when comparing the M-ABC and NDPA that the M-ABC does not provide information on motor planning, bilateral integration or sequencing.