Table 2.

Psychometric indicators of the cutoff points for the SDQ conduct disorder, hyperactivity/inattention, and peer relationship problems scales (To be continued).

DAWBA gold standard	SDQ: cutoff points	Se	Sp	MCR	PPV	NPV
Conduct disorder	CONDUCT PROBLEMS
	2	1.00	0.42	0.53	0.14	1.00
	3	0.90	0.58	0.39	0.16	0.98
	4	0.90	0.68	0.30	0.20	0.99
	5	0.70	0.83	0.18	0.27	0.97
	6	0.70	0.85	0.16	0.30	0.97
	7	0.30	0.94	0.12	0.30	0.94
	8	0.20	0.95	0.11	0.29	0.93
	9	0.10	0.98	0.09	0.33	0.92
	10	0.10	0.99	0.08	0.50	0.92
Attention deficit hyperactivity disorder	HYPERACTIVITY/INATTENTION
	2	0.94	0.31	0.52	0.34	0.93
	3	0.94	0.49	0.38	0.41	0.96
	4	0.94	0.57	0.33	0.46	0.96
	5	0.88	0.72	0.23	0.55	0.94
	6	0.76	0.78	0.23	0.57	0.89
	7	0.45	0.89	0.23	0.60	0.81
	8	0.45	0.93	0.20	0.71	0.82
	9	0.33	0.99	0.19	0.92	0.80
	10	0.27	0.99	0.21	0.90	0.78
Antisocial personality disorder	PEER RELATIONSHIP PROBLEMS
	2	1.00	0.50	0.48	0.11	1.00
	3	0.86	0.76	0.23	0.18	0.99
	4	0.86	0.83	0.17	0.24	0.99
	5	0.86	0.95	0.06	0.05	0.99
	6	0.86	0.97	0.03	0.67	0.99
	7	0.71	0.99	0.03	0.83	0.98
	8	0.29	1.00	0.04	1.00	0.96
	9	0.14	1.00	0.05	1.00	0.95

Se, Sensitivity; Sp, Specificity; MCR, Misclassification rate; PPV, Positive predictive value; NPV, Negative predictive value; Bold values, Suggested cutoff point.