Table 5.

Graded Response Model Parameter Estimates: Parent Ratings.

Symptom	a	SE	b 1	SE	b 2	SE	b 3	SE
Careless	2.19	.16	−1.41	.10	−0.14	.06	0.80	.07
Attention	3.21	.23	−0.81	.07	0.09	.05	0.88	.06
Listen	2.77	.20	−1.11	.08	−0.06	.06	0.86	.07
Finish	3.08	.23	−0.94	.07	0.01	.05	0.75	.06
Disorganized	2.62	.19	−0.81	.07	0.08	.06	0.86	.07
Avoids	2.16	.16	−0.85	.08	0.01	.06	0.89	.08
Loses	2.34	.17	−0.82	.08	0.28	.06	1.09	.08
Distracted	2.84	.21	−1.32	.08	−0.42	.06	0.38	.06
Forgetful	2.56	.19	−0.71	.07	0.22	.06	1.01	.07
Fidgets	2.38	.18	−0.90	.08	−0.15	.06	0.58	.06
Sitting	2.36	.18	−0.57	.07	0.42	.06	1.15	.08
Climbs	2.20	.17	−0.32	.07	0.56	.07	1.33	.10
Loud	2.08	.17	−0.23	.07	0.67	.07	1.42	.11
Motor	2.06	.16	−0.40	.07	0.29	.06	0.95	.08
Talkative	1.65	.13	−0.88	.09	0.12	.07	0.92	.09
Blurts	1.89	.15	−0.63	.08	0.35	.07	1.29	.10
Waiting	2.60	.20	−0.51	.07	0.38	.06	1.04	.08
Interrupts	2.07	.16	−1.33	.10	−0.08	.06	0.85	.08

Note. a = item discriminations; b₁ to b₃ = item locations; SE = standard error.