Table 3.
Mean (SD) and range of scores for the three groups on all motor and social measures
| Measures | TD (n = 35) |
ASD (n = 30) |
DCD (n = 30) |
Post hoc |
|---|---|---|---|---|
| Motor ability | ||||
| MABC-2 Total SS | ||||
| Mean (SD) | 11.40 (2.07) | 7.50 (3.74) | 3.37 (1.99) | TD > ASD > DCD |
| Range | 8–16 | 1–15 | 1–7 | |
| VABS Gross Motor Raw Score† | ||||
| Mean (SD) | 79.60 (1.14)b | 72.55 (6.71)a | 69.89 (4.75)a | (ASD = DCD) < TD |
| Range | 75–80 | 60–80 | 60–78 | |
| VABS Fine Motor Raw Score† | ||||
| Mean (SD) | 70.73 (1.86)b | 60.65 (9.70)a | 57.21 (6.33)a | (ASD = DCD) < TD |
| Range | 65–72 | 46–75 | 43–71 | |
| Social functioning | ||||
| Benton Raw Score | ||||
| Mean (SD) | 21.77 (2.39) | 19.73 (2.64) | 19.03 (2.44) | (ASD = DCD) < TD |
| Range | 14–26 | 14–24 | 12–24 | |
| Bruce Expression Match | ||||
| Mean % correct (SD) | 96.67 (6.13) | 92.22 (10.48) | 87.22 (14.48) | (ASD = DCD) < TD |
| Range | 75–100 | 59–100 | 42–100 | |
| Bruce Speech Sound Match | ||||
| Mean % correct (SD) | 97.86 (4.21) | 91.38 (9.15) | 89.72 (9.45) | (ASD = DCD) < TD |
| Range | 83–100 | 75–100 | 67–100 | |
| Bruce Gaze Match | ||||
| Mean % correct (SD) | 97.71 (6.45) | 88.66 (17.37) | 91.00 (13.98) | (ASD = DCD) < TD |
| Range | 70–100 | 40–100 | 50–100 | |
| SCQ Total Score† | ||||
| Mean | 2.79 (2.58) | 22.51 (6.08) | 9.79 (6.19) | TD < DCD < ASD |
| Range | 0–7 | 15–38 | 1–27 | |
| VABS Socialisation SS† | ||||
| Mean (SD) | 107.32 (14.12)a | 73.28 (12.86)a | 87.28 (12.35)a | TD > DCD > ASD |
| Range | 83–135 | 50–117 | 68–117 | |
Post hoc results are after controlling for FSIQ, apart from for the Bruce measures
SS = Standard Score; MABC-2 = Movement Assessment Battery for Children, Standard scores = M 10, SD 15, VABS = Vineland Adaptive Behaviour Scales, Standard scores = M 100, SD 15. SCQ = Social Communication Questionnaire
a1 missing data point
b2 missing data points
†Parent report