PSYC 3420 Lecture 7: Evolutionary Psychology Lecture 7
7 Feb 2018
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Being raised in the same household, going to the same schools, having the same parents, etc. does not seem to have a significant effect on personality development. * there is no effect of shared environment* Why the discrepancies between theory and data: 1. After birth, females are tied to their offspring with lactation. Evolutionary psychology lecture 7: 670 calories per day just in the business of produces milk (biologically expensive) By the time they reach 30 years of age, their reproductive career declines. Males gain a lot from multiple mating opportunities. Their fitness can increase significantly with the number of females they inseminate. Sex differences in sexual motivation: male"s sexual motivation is constantly high. Double standard in adultery laws: males constrain female liberty. Infidelity has much different consequences for females then it does for females: human fathers make considerable investments in their children. The consequence in investing in a child that is not yours genetically is enormous.
