. 2009 Mar 5;1(1):81–90. doi: 10.1007/s11689-009-9009-8

Table 1.

Sample characteristics

Group	N^a	Site (SU/UNC)	Age (years) M (SD)	IQ Estimate^b M (SD)	Adaptive Beh^c M (SD)
Fragile X Syndrome	52	(28/24)	2.9 (0.6)	54.9 (9.1)	62.3 (9.8)
Autism	63	(17/46)	2.8 (0.4)	54.1 (9.4)	62.3 (8.3)
Developmental Delay	19	(11/8)	2.96 (0.5)	55.8 (7.6)	64.8 (11.7)
Typically Developing	31	(11/20)	2.6 (0.6)	109.6 (17.2)	97.2 (12.7)

^aAll subjects were males

^bIQ Estimate from Mullen Composite Standard Score

^cAdaptive behavior estimate from Vineland Adaptive Behavior Composite