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. Author manuscript; available in PMC: 2011 Apr 1.

Published in final edited form as: J Marriage Fam. 2010 Apr 1;72(2):267–281. doi: 10.1111/j.1741-3737.2010.00698.x

Table 3. Summary of Hierarchical Regression Models Predicting Sibling’ Temporal Involvement as a Function of Sibling Differentiation Polynomials, Sex Constellation, and Differentiation X Sex Constellation Interactions (N = 136).

	Model 1			Model 2

Variable	B	SE B	β	B	SE B	β
Intercept	564.18 ^**	44.87		593.94 ^**	46.94
Parents’ education	−9.44	23.95	−.04	−5.45	23.72	−.02
Family income	−.00	.00	−.10	−.00	.00	−.10
Parents’ job prestige	.00	3.30	.00	−.18	3.25	−.01
Age spacing	−55.73^**	16.87	−.30	−49.68^**	16.82	−.26
Older siblings’ residential status	−235.44^*	106.92	−.19	−249.50^*	105.81	−.21
Sex composition	−148 .72^*	57.78	−.21	−223.93^**	67.36	−.31
Differentiation	79.08^*	38.30	.17	87.33	56.26	.18
Differentiation²	12.07	32.07	.03	−41.46	41.71	−.11
Differentiation X Sex composition				−49.15	77.01	−.07
Differentiation² X Sex composition				145.60^*	64.67	.25
R ²		.23			.26
F for change in R²		4.70^**			3.02^*

^†

p < .10.

^*

p < .05.

^**

p < .01.