Table 2.

Item Parameters for the Eight Symptoms of Oppositional Defiant Disorder (2PL Model)

Item	Item Parameters		Standard Errors
	α	β	σα	σβ
Argues with adults	2.05	−0.72	0.33	0.12
Loses temper	2.59	−0.69	0.44	0.11
Actively deifies or refuses to go along with adults’ requests or rules	1.77	−0.56	0.29	0.11
Deliberately annoys people	1.65	−0.07	0.26	0.10
Blames others for his or her mistakes or misbehaviors	1.50	−0.82	0.25	0.15
Is touchy or easily annoyed by others	1.61	−0.16	0.26	0.11
Is angry or resentful	2.12	0.14	0.35	0.09
Is spiteful and wants to get even	2.29	0.68	0.43	0.11