Table 4.

SRS index scores for youth with autism by co-occurring anxiety and ADHD subgroups

	Anxiety (n = 25)	ADHD (n = 10)	Both (n = 43)	Neither (n = 35)
SRS Index	M (sd)	M (sd)	M (sd)	M (sd)	F	p	ηp2
Social Communicationcf	89.40 (18.53)	73.70 (17.15)	92.88 (16.29)	73.69 (21.19)	8.55	< .001	.193
Repetitive Behaviorcf	21.44 (5.83)	17.90 (6.37)	22.09 (4.98)	15.89 (6.45)	9.15	< .001	.204

Controlling for Composite IQ and gender. Significant group differences (p < .05):

^aAnxiety versus ADHD

^bAnxiety versus Both

^cAnxiety versus Neither

^dADHD versus Both

^eADHD versus Neither

^fBoth versus Neither.