Table 1. Endorsement rates for response categories on each item in the Strengths and Difficulties Questionnaire for the full sample, and separately for boys and girls.

	Not true %			Somewhat true %			Certainly true %
	Full sample	Boys	Girls	Full sample	Boys	Girls	Full sample	Boys	Girls
SDQ scales
Emotion
Somatic	53.88	69.11	40.33	31.3	23.63	38.12	14.82	7.26	21.55
Worries	40.21	54.22	27.77	40.54	34.97	45.50	19.25	10.81	26.72
Unhappy	64.97	81.28	50.47	26.26	14.92	36.33	8.78	3.80	13.20
Clingy	33.01	41.93	25.10	47.62	45.39	49.59	19.37	12.69	25.31
Afraid	73.09	86.78	60.91	20.96	11.04	29.77	5.96	2.17	9.32
Conduct
Tantrum	53.88	59.74	49.01	36.84	33.21	40.08	9.09	7.05	10.92
Obeysa	3.40	4.07	2.81	48.34	50.91	46.07	48.25	45.02	51.11
Fights	92.63	89.96	94.99	6.36	8.80	4.20	1.01	1.24	0.81
Lies	87.12	82.12	91.56	10.30	14.19	6.85	2.58	3.69	1.59
Steals	90.46	88.22	92.44	7.70	9.67	5.94	1.85	2.11	1.61
Hyper
Restless	32.47	35.07	30.17	50.83	47.51	53.77	16.70	17.42	16.06
Fidgety	47.4	48.59	46.33	42.2	41.28	43.03	10.40	10.14	10.63
Distractible	30.84	34.26	27.80	47.63	47.95	47.33	21.54	17.78	24.87
Reflectivea	5.94	6.49	5.46	59.76	56.30	62.84	34.30	37.21	31.70
Attendsa	14.26	13.24	15.17	57.79	57.88	57.71	27.95	28.89	27.13
Peer
Loner	49.68	47.31	51.79	39.49	41.30	37.87	10.84	11.39	10.34
Frienda	2.20	2.30	2.12	10.51	11.08	10.01	87.28	86.62	87.87
Populara	3.58	4.16	3.06	37.77	37.94	37.63	58.65	57.90	59.31
Bullied	91.74	90.88	92.50	6.87	7.66	6.17	1.39	1.46	1.33
Oldbest	59.76	59.63	59.87	32.48	33.14	31.90	7.76	7.22	8.23
Prosocial
Considerate	1.15	1.71	0.66	16.12	22.61	10.36	82.73	75.68	88.98
Shares	4.56	5.85	3.41	40.45	43.56	37.70	54.99	50.59	58.89
Caring	2.93	4.73	1.33	29.47	42.77	17.67	67.60	52.50	81.00
Kind	3.22	3.84	2.66	24.62	29.31	20.46	72.17	66.85	76.88
Helps out	10.11	12.41	8.08	62.02	62.51	61.57	27.87	25.08	30.35

^aPositively worded items.