Table 2.

Comparison of the number of biological siblings for children living with both biological parents, children living with one parent, and children living with neither parent (all children with known number of biological siblings: n = 280, Kruskal–Wallis test). And comparison between fostered and adopted children’s number of biological siblings and the number of minors with whom fostered and adopted children were sharing their current home (fostered and adopted children with known number of biological siblings: n = 46, Wilcoxon signed-rank test; the number of biological siblings was not known for two fostered and adopted children)

	Parents Present: Mean (SD)
	Both	One	None	V	χ2	η2	df	p
Biological siblings	2.61 (1.55)	1.34 (1.26)	1.74 (1.56)	—	33.98	.12	2	< .001
Coresident minors	2.43 (1.39)	2.50 (2.20)	1.85 (1.47)	263	—	—	—	.56