Table 5.

Predicting Withdrawal scores at age four as a function of negative affect at nine months and cortisol levels at age 4. Analyses were conducted separately for boys and girls.

Boys				Girls
Predictor	β	ΔR2	ΔF	Predictor	β	ΔR2	ΔF
Negative Affect	0.33*	0.18	8.57**	Negative Affect	0.18	0.02	0.96
Cortisol	0.93**	0.10	5.14*	Cortisol	0.05	0.00	0.03
Negative Affect X Cortisol	0.81**	0.23	16.92**	Negative Affect X Cortisol	0.18	0.03	1.16
F(3,35)=12.62, p<0.001				F(3,38)=0.71, p=0.55

Note: Standardized β are presented.

⁺p<0.10

^*p<0.05

^**p<0.01