Table 1.

Total aggression mean score comparisons from different informants by ASPD diagnosis and sex

Informant (age of participant)	Sex	ASPD N/total N	No ASPD	ASPD	p valuea	Effect Sizeb
Parent (12)	Combined	64/1278	0.58	0.71	0.008	0.32
	Female	21/668	0.54	0.65	0.094
	Male	43/610	0.62	0.74	0.074
Teacher (12)	Combined	65/1302	0.61	1.00	<0.001	0.61
	Female	23/690	0.52	0.69	0.181
	Male	42/612	0.72	1.17	<0.001
Teacher (14)	Combined	49/1013	0.29	0.72	<0.001	0.94
	Female	17/546	0.22	0.50	0.053
	Male	32/467	0.38	0.83	<0.001
Self (14)	Combined	63/1312	0.46	0.75	<0.001	0.80
	Female	24/695	0.39	0.63	0.007
	Male	39/617	0.54	0.82	<0.001
Co-Twin (14)	Combined	54/1208	0.57	0.91	<0.001	0.69
	Female	20/647	0.48	0.76	0.033
	Male	34/561	0.67	0.99	0.002

^aMean differences evaluated using adjusted Wald test

^bCohen’s d