Table 2. Hierarchical Regressions Examining Whether Interpersonal Dimensions Account for Variance in Developmental Trajectory Variables.

Age at First Binge
	Mean (SD)	Beta	t	AdjustedR2	R2 Change	F Change
Step 1
Dominance	−0.09 (0.67)	0.027	0.232	−0.013	0.001	0.054
Step 2				0.057	0.083	6.328*
Dom × Dom	0.45 (0.74)	−0.313	−2.516*
Age at BED Onset
Step 1				−0.013	0.001	0.069
Dominance	−0.06 (0.64)	0.031	0.262
Step 2				0.105	0.129	10.275**
Dom × Dom	0.41 (0.65)	−0.378	−3.205**
Age at Diet Onset
Step 1				0.058	0.083	3.296*
Dominance	−0.10 (0.67)	0.065	0.572
Affiliation	0.12 (0.60)	−0.272	−2.409*
Age at Overweight Onset
Step 1				−0.004	0.011	0.750
Dominance	−0.10 (0.69)	0.104	0.866
Step 2				0.044	0.060	4.416*
Dom × Dom	0.48 (0.76)	−0.270	−2.102*

Note. Dom=dominant interpersonal style. Affil=affiliative interpersonal style. Dom × Dom=extremity on dominant dimension. Affil × Affil=extremity on affiliative dimension.

^*p≤0.05.

^**p≤0.01.