Table 2.

Bivariate correlations between maternal and teacher SDQ scores and means/standard deviations of children’s outcomes at 9 and 13 years of age

	Conduct problems 9 years (teacher)	Hyperactivity 9 years (teacher)	Mean (SD)	Min–max
Conduct problems 9 years (maternal)	r = .22	r = .21	1.19 (1.37)	0–10
Hyperactivity 9 years (maternal)	r = .23	r = .42	2.86 (2.36)	0–10
Conduct problems 9 years (teacher)	–		0.61 (1.28)	0–10
Hyperactivity 9 years (teacher)	r = .50	–	2.12 (2.50)	0–10
Conduct problems 13 years (maternal)			1.03 (1.31)	0–10
Hyperactivity 13 years (maternal)			2.41 (2.25)	0–10

All correlations significant at the p = < .001 level