Table 2.

Sex Differences in Child Symptoms and Risk Markers

	Male n = 64	Female n = 45
ODD symptoms (P)	8.02 (6.52)	7.78 (6.83)
ADHD symptoms (P)	24.2 (14.34)	23.64 (17.42)
Inattention (P)	10.23 (6.87)	11.33 (9.17)
Hyper–Imp (P)	13.97 (7.94)	12.31 (9.02)
ODD symptoms (T)	7.97 (7.34)	5.96 (5.7)
ADHD symptoms (T)	24.83 (17.2)	22.09 (15.54)
Inattention (T)	12.26 (8.71)	11.5 (9.51)
Hyper–Imp (T)	12.57 (9.19)	10.61 (7.74)
Negative affect	4.25 (.97)	4.26 (1.06)
Surgency	4.83 (.92)	4.67 (1.03)
Effortful control	4.72 (.81)	5.02 (.96)+
Response inhibition	.81 (.38)	.74 (.28)
Set-shifting	30.11 (22.82)	39.54 (29.59)
Working memory	2.11 (2.42)	1.53 (2.21)

Note. Subgroup differences based on ANOVA/MANOVA. ODD = oppositional defiant disorder; Hyper–Imp = hyperactive-impulsive. (P) = Parent report; (T) = Teacher report. Response inhibition = efficiency score. Set-shifting = Time to complete Trails B. Working memory = Digit span backward raw score.

⁺p < .1.

*p < .05. **p < .01.