Attributes of carnegie medalists performing acts of heroism and of the recipients of these acts

1992 Eagly, 1986, Gender and helping behavior: A meta-analytic analysis of the social psychological literature, Psychological Bulletin, 100, 283, 10.1037/0033-2909.100.3.283 Hamilton, 1964, The genetical evolution of social behavior: I and II, Journal of Theoretical Biology, 7, 1, 10.1016/0022-5193(64)90038-4 Johnson, 1989, Cross-cultural assessment of altruism and its correlates, Personality and Individual Differences, 10, 855, 10.1016/0191-8869(89)90021-4 Rushton, 1981, The altruistic personality and the self-report altruism scale, Personality and Individual Differences, 2, 293, 10.1016/0191-8869(81)90084-2 1990 Trivers, 1971, The evolution of reciprocal altruism, Quarterly Review of Biology, 46, 35, 10.1086/406755 Trivers, 1985 Wilson, 1983, The group selection controversy: History and present status, Annual Review of Ecology and Systematics, 14, 159, 10.1146/annurev.es.14.110183.001111