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Psychology | Unit 3 | Relationships - Sexual Selection

Types of Sexual Selection
1. Intersexual (mate choice)
2. Intrasexual (mate competition)
Gender Differences
1. Males
  1. Greater desire for casual sex.
  2. Seek sex early on in relationship.
  3. More women impregnated means more genes passed on.
  4. Over short-term men appear to lower standards compared to women.
2. Females
  1. Not subjected to same evolutionary pressures as men.
  2. Less benefits from casual sex.
3. In the long-term, both sexes typically invest heavily in any offspring.
Preferences
1. Males
  1. Physical attractiveness
  2. Younger partners
2. Females
  1. Resources
3. Both sexes look for mates who are intelligent, kind, and dependable.
Research Support
1. Penton-Voak et al. (1999)
2. Buss's study of 37 cultures
3. Dunn et al.
Limitations
1. Validity Issues - Preferences are not the same as choices.
2. Gender bias and heterosexual bias.

Psychology | Unit 3 | Relationships - Sexual Selection

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