Table 2.

Mean Performance on Motor and Social Measures

	Mean (SD) n=21	Range
Peabody Developmental Motor Scales Second Edition
Stationary	5 (1.4)	3–9
Locomotion	6.4 (1.9)	4–11
Object Manipulation	6.5 (1.9)	2–10
Gross Motor Quotient	74.1 (10.0)	57–94
Miller Function and Participation Scales
Motor Accuracy	4.6 (1.5)	1–6
Motor Planning	7.5 (3.4)	2–13
Stability	5.1 (2.3)	0–9
Balance & Equilibrium	5.3 (1.7)	1–7
Weight Shifting	1.7 (1.5)	0–5
Gross Motor Scaled Score	5.0 (3.0)	1–10
Social Skills Improvement System Rating Scales
Communication	10.9 (4.5)	1–20
Cooperation	10.0 (2.7)	4–15
Assertion	8.3 (4.2)	2–16
Responsibility	6.9 (4.0)	0–13
Empathy	6.4 (4.3)	0–14
Engagement	8.1 (4.5)	2–18
Self-Control	8.3 (4.3)	1–19
Social Skills Standard Score	78.2 (15.3)	42–113

Note. PDMS-2 subtest means are presented as scale scores. MFUN and SSIS subtests represent raw scores. Maximum possible scores for each MFUN subtest were as follows: Motor Accuracy=6, Motor Planning=13, Stability=9, Balance and Equilibrium=7, and Weight Shifting=5. Maximum possible scores for each SSIS subtest varied by age (4/5 years) as follows: Communication=18/21, Cooperation=18/21, Assertion=21/21, Responsibility=18/21, Empathy=18/18, Engagement=21/21, Self-Control=21/18.