Table 2.
Variable | Sibs-ASD/AS (n = 15) | Sibs-ASD/NS (n = 27) | Sibs-TD (n = 25) |
---|---|---|---|
Social Smiling | |||
M (SD) | .25 (.28)a | .36 (.39)a | .53 (.47)b |
Range | .00–.83 | .00–1.74 | .00–1.76 |
Non-Social Smiling | |||
M (SD) | .81 (.81)a | .81 (.69)a,b | 1.13 (.73)b |
Range | .00–2.43 | .00–2.37 | .00–2.43 |
Eye Contact | |||
M (SD) | 1.67 (.99)a | 2.84 (1.71)a,b | 2.88 (1.41)b |
Range | .58–3.31 | .56–6.48 | .72–5.71 |
Notes. Means with different superscripts were significantly different from each other; means with both superscripts were not statistically significant from any other mean.
Sibs-ASD/AS = Sibs-ASD with later ASD symptomatology. Sibs-ASD/NS = Sibs-ASD without later ASD symptomatology.