Table 2.

Means (SDs) and comparison statistics for teachers' ratings of ASD and SSD symptoms in teacher-defined (source-specific) ODD subgroups and clinic controls.

Variable	Angry/irritable (AIS)	Noncompliant (NS)	Controls (C)	F	eta2	Post hoc
Ages 6–11 years	n = 125	n = 79	n = 333
ASD
Communication deficits	3.0 (2.6)	3.1 (2.8)	1.6 (2.4)	20.5***	0.07	AIS,NS > C
Social deficits	6.1 (3.5)	5.8 (3.2)	2.7 (3.1)	65.1***	0.20	AIS,NS > C
Perseverative behaviors	3.6 (3.2)	2.8 (2.6)	1.5 (2.3)	34.3***	0.11	AIS,NS > C
ASD summary score	12.7 (7.5)	11.6 (6.9)	5.7 (6.5)	56.6***	0.18	AIS,NS > C
Schizophrenia spectrum	8.3 (7.9)	6.5 (7.0)	3.6 (5.0)	29.1***	0.10	AIS > NS > C
Variable	Angry/irritable (AIS)	Noncompliant (NS)	Controls (C)	F	eta2	Post hoc
Ages 12–18 years	n = 119	n = 76	n = 396
ASD
Communication deficits	2.2 (2.5)	1.9 (2.0)	1.0 (1.7)	20.8***	0.07	AIS,NS > C
Social deficits	5.1 (3.3)	4.3 (3.1)	2.3 (2.8)	49.9***	0.15	AIS,NS > C
Perseverative behaviors	2.7 (2.8)	2.3 (2.4)	0.8 (1.6)	48.4***	0.14	AIS,NS > C
ASD summary score	10.0 (7.6)	8.5 (6.2)	4.1 (5.0)	53.8***	0.16	AIS,NS > C
Schizophrenia spectrum	6.5 (6.7)	5.1 (6.2)	3.3 (4.6)	16.8***	0.06	AIS,NS > C

Note: ASD, autism spectrum disorder; SSD, schizophrenia spectrum disorder; ODD, oppositional defiant disorder; eta², effect size.

^***p < .001.