. Author manuscript; available in PMC: 2015 Apr 1.

Published in final edited form as: J Autism Dev Disord. 2014 Apr;44(4):894–902. doi: 10.1007/s10803-013-1944-2

Table 2.

Raw Means for Dependent Variables (Rate/Minute)

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.