Table 2. Gamma Coefficients (γ) and t-Ratios for Multi-level Models of Social and Dyadic Time With Mothers and Fathers.

	Social time				Dyadic time
	Mothers		Fathers		Mothers		Fathers
Fixed effects	γ	t-ratio	γ	t-ratio	γ	t-ratio	γ	t-ratio
Linear and quadratic age effects and age at Time 1
Intercept	22.49	26.28**	19.97	22.06**	8.35	13.27**	6.08	9.95**
Linear effect	−.95	−11.51**	−.84	−6.70**	.04	.62	−.18	−2.06*
Quadratic effect	-	-	.02	.41	−.05	−3.91**	−.04	−2.02*
Age at Time 1	.31	1.18	.24	.87	−.13	−.63	−.17	−.84
Birth order, gender, sibling dyad gender composition and parental education and family size
Birth order	.28	.41	.96	1.20	1.06	1.87†	.13	0.23
Birth order × Linear effect	.47	5.06**	.34	2.14*	-	-	.27	2.04*
Birth order × Quadratic effect	-	-	−.11	−2.13*	-	-	-	-
Gender	−1.40	−4.18**	.81	2.32*	−1.37	−3.12**	.69	1.63
Gender × Linear effect	-	-	-	-	−0.16	−2.05*	.20	2.45*
Gender composition	.09	.16	−.11	−.20	1.83	4.43**	−.16	−.41
Gender × Gender composition	-	-	-	-	−1.87	−3.28**	2.67	4.84**
Parents’ levels of education	.03	.20	−.01	−.05	.07	.92	−.01	−.17
Family size	.31	.83	.42	1.10	−1.62	−7.90**	−.97	−4.92**

Note.

^†p < .10

^*p < .05

^**p < .01.