PSYC 3100 Lecture Notes - Lecture 11: Coolidge Effect, Polygynandry, Parental Investment

• School: University of Guelph
• Department: Psychology
• Course: PSYC 3100
• Professor: Pat Barclay

Document Summary

Men and women similar on going on a date. Much more men than women say they would go back to apartment (70-8%) Same thing with gong to bed with the person: basis of predictions, predictions female carries offspring till birth (9 months), minimum is higher for females. Differences in minimal parental investment: who has the bigger gamete? (sperm vs. Biased operational sex ratio (this is different from sex ratio) Sex differences in body size and/or weaponry: males may have bigger bodies and weapon, on average human males are stronger and larger than females. Delayed maturity in males: pays to wait a little, build more muscle, social status, etc. Holding off and building up capital before the competition starts. In humans females begin puberty years earlier than guys do. Sex differences in willingness to engage in sex: male reproductive success (rs) increases with each additional mate, whereas females do not gain as much from mating again;