Moral psychology is a field of study at the intersection of philosophy and psychology. It  covers areas such as reasoning, moral development, moral motivation, and the evolutionary origins of morality.

Effective altruists have taken a special interest in several topics moral psychology, including the psychology of effective giving;[1][2][3][4][5][6][7] the psychology of existential risk;[8] the psychology of population ethics;[9]  the psychology of the future;[10] the psychology of speciesism;[11][12][13] the psychology of utilitarianism;[14][15] the link between giving and happiness;[16][17] the personality traits of effective altruists;[18] and the psychology of altruistic motivation.[19]

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