Relationship between human reproductive behaviour and Sexual Selection

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1. What did Buss (2007) find?

  • Short term mating preferences in women allowed the women to leave poor quality relationships and have genetically diverse offspring increasing likelihood of their survival
  • Across cultures there a preference for a female 0.7 waist to hip ratio going an hourglass figure
  • The less time a man spend with a woman before sex the more women he could impregnate
  • Due to higher level of parental investment in women, they had a preference for a man who would be a good parent, invest resources in her and offspring, be able to physically protect them and be compatible to her
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2. What did Buss (1989) find?

  • Short term mating preferences in women allowed the women to leave poor quality relationships and have genetically diverse offspring increasing likelihood of their survival
  • Both sexes had a preference for symmetrical faces as they represented healthier genes
  • In a cross-cultural study, it was found that men valued physical attractiveness more than women and women valued valued financial success more
  • Across cultures there a preference for a female 0.7 waist to hip ratio going an hourglass figure

3. What did Waynforth find?

  • Short term mating preferences in women allowed the women to leave poor quality relationships and have genetically diverse offspring increasing likelihood of their survival
  • Both sexes had a preference for symmetrical faces as they represented healthier genes
  • Women are attracted to masculine features such as a square jaw and rigid eyebrows in men as they're associated with high levels of testosterone, suggesting they have healthy genes as testosterone surpasses the immune system
  • Men were more attracted to women with young faces with characteristics such as large eyes, small nose and chin

4. Describe intrasexual selection

  • Mate competition; the preference of one sex for the opposite sex that possess favourable characteristics and therefore good genes that will be passed onto offspring
  • Mate choice; the preference of one sex for the opposite sex that possess favourable characteristics and therefore good genes that will be passed onto offspring
  • Mate competition; members of the same sex compete for access to members of the opposite sex and the winners go on to mate and pass on their genes that helped them win
  • Mate choice; members of the same sex compete for access to members of the opposite sex and the winners go on to mate and pass on their genes that helped them win

5. Which study suggested that short term mating preferences in women allowed the women to leave poor quality relationships and have genetically diverse offspring increasing likelihood of their survival?

  • Grilling and Buss
  • Buss (2007)
  • Buss (2003)
  • Singh

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