Table 2.

Mean Scores for Externalizing Group by Sex at Time 1 and Time 2. Standard Deviations are in Parentheses.

	Total	Boys (n = 85)	Girls (n = 76)	t
Time 1
CD	1.57 (1.41)	1.71 (1.58)	1.42 (1.18)	1.28
ODD	4.53 (2.02)	4.62 (2.03)	4.43 (2.03)	0.59
ADHD HI	5.39 (2.03)	5.54 (2.17)	5.21 (1.87)	1.03
Time 2
CD	0.76 (1.26)	0.89 (1.44)	0.62 (1.01)	1.42
ODD	2.55 (2.23)	2.54 (2.22)	2.57 (2.25)	−0.07
ADHD HI	3.78 (2.62)	3.94 (2.47)	3.61 (2.77)	0.80

Note: CD = conduct disorder symptoms; ODD = oppositional defiant disorder symptoms; ADHD HI = attention deficit hyperactivity disorder, hyperactive/impulsive symptoms.

^**p < .01,

^***p < .001