Table 3.

Mean scores, standard deviations, and t-test values of males and females in cooperation and altruism.

Tests	Males (N = 93)		Females (N = 144)		T-test
	M	SD	M	SD
Cooperation	47.56	4.35	61.88	6.77	4.72**
Altruism	32.72	3.13	39.88	8.84	5.92**

^**Significant at the p < 0.01 level (2-tailed).