Table 1.

Means and standard deviations of scores on the prosociality facets.

	Boys		Girls		Sex difference
	Mean	SD	Mean	SD	t	D
Sharing	1.20	0.51	1.38	0.53	3.11	0.33
Social concern	1.03	0.39	1.19	0.43	2.85	0.30
Kindness	1.42	0.48	1.61	0.38	3.48	0.36
Helping	1.05	0.48	1.24	0.45	4.16	0.44
Empathic concern	1.27	0.44	1.51	0.38	3.92	0.41

All sex differences significant, p < 0.005.