Table 3.

Main effects and interactions among sex, puberty, and peer stress in predicting depression concurrently and longitudinally

	Concurrent Depression			Longitudinal Depression Unadjusted			Longitudinal Depression Adjusted
	Pubertal Status	Pubertal Timing	Perceived Timing	Pubertal Status	Pubertal Timing	Perceived Timing	Pubertal Status	Pubertal Timing	Perceived Timing
Step 1: main effects	R2 = .24	R2 = .24	R2 = .26	R2 = .30	R2 = .34	R2 = .31	ΔR2 = .09	ΔR2 = .13	ΔR2 = .09
Sex	.07	.07	.09	.12†	.12†	.16*	.11†	.11*	.14*
Puberty	.03	.04	.05	.12†	.24***	.10	.11*	.23***	.06
Peer Stress	.48***	.47***	.48***	.52***	.50***	.51***	.29***	.28***	.29***
Step 2: two ways	ΔR2 = .04	ΔR2 = .05	ΔR2 = .08	ΔR2 = .01	ΔR2 = .04	ΔR2 = .06	ΔR2 = .01	ΔR2 = .05	ΔR2 = .03
Sex × Puberty	.24*	.26*	.36**	.07	.12	.36**	−.02	.02	.21*
Sex × Stress	.20†	.15	.19	.08	.03	.10	.07	.02	.11
Puberty × Stress	−.01	.04	−.02	.06	.19**	−.06	.07	.23***	.05
Step 3: three ways	ΔR2 = .01	ΔR2 = .02	ΔR2 = .00	ΔR2 = .01	ΔR2 = .00	ΔR2 = .01	ΔR2 = .00	ΔR2 = .00	ΔR2 = .01
Sex × Puberty × Stress	.18	.22†	.07	−.16	.05	.14	−.08	.04	.22†

Note: Except where R² is indicated, the values are standardized beta coefficients from the step of entry in hierarchical regression analyses.

^†p < .10.

^*p < .05.

^**p < .01.

^***p < .001.