An empirical study of moral intuitions: Toward an evolutionary ethics.

This study of moral intuitions used a questionnaire containing 2 moral dilemmas that were administered to university students. The dilemmas probed the underlying dimensions involved in moral intuitions. The results of both group- and individual-level analyses suggested that the most important dimensions were Speciesism, Abhorrent Political Philosophy (Nazism), and Inclusive Fitness, followed by Social Contract and Number of Individuals. The dimensions of Action-Inaction, Elite, and Endangered Species had significant but weak influences