Parental Investment - Psychological study of Relationships

Trivers (1972) defined parental investment as anything a parent does for their offspring to increase the chances of that offsprings survival. This is at the expence of being unable to invest in any other offspring at the same time. 

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  • Created by: Marg
  • Created on: 18-04-14 13:56

1. What did psychologist Gehre et al. (2007) discover? (AO2)

  • 91 childless undergrads reported (no gender differences) they felt ready to become parents but measured their physiological responses males showed significantly increased heart-rate suggesting they're biologically less prepared than females
  • Using the a magazine survey completed by 2700 UK women estimated 14% of children in the UK are the result of extra-marital affairs and cuckoldry
  • Males are more jealous of physical adultery where as women are more jealous of emotional adultery and concludes that sexual jealousy has evolved over time as a way of preventing cuckoldry
  • Men would not discriminate against paying for their biological children and their step-children's collage education
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2. Why do Males Invest Less as Parents than Women?

  • Children prefer their mothers
  • Males could never have been totally sure they haven't been cuckolded unlike women who are
  • Men are less competent with handling children as didn't carry the child prenatally but was biologically forced to be separate from them
  • Men are more selfish in sharing their resources than women

3. What did psychologist Anderson (1999) discover?

  • Males are more jealous of physical adultery where as women are more jealous of emotional adultery and concludes that sexual jealousy has evolved over time as a way of preventing cuckoldry
  • Men would not discriminate against paying for their biological children and their step-children's collage education
  • Using the a magazine survey completed by 2700 UK women estimated 14% of children in the UK are the result of extra-marital affairs and cuckoldry
  • 91 childless undergrads reported (no gender differences) they felt ready to become parents but measured their physiological responses males showed significantly increased heart-rate suggesting they're biologically less prepared than females

4. What did the psychologists Baker and Bellis (1990) discover? (AO2)

  • Using the a magazine survey completed by 2700 UK women estimated 14% of children in the UK are the result of extra-marital affairs and cuckoldry
  • 91 childless undergrads reported (no gender differences) they felt ready to become parents but measured their physiological responses males showed significantly increased heart-rate suggesting they're biologically less prepared than females
  • Males are more jealous of physical adultery where as women are more jealous of emotional adultery and concludes that sexual jealousy has evolved over time as a way of preventing cuckoldry
  • Men would not discriminate against paying for their biological children and their step-children's collage education

5. What is the best explanation for Anderson's findings using the parental investment theory?

  • Investment levels may be due to desire for sexual intimacy with wife and promote own personal reproductive fitness as she would more likely remain and reproduce with him
  • Parental Investment theory is correct
  • The theory has it wrong and in real life men don't have a problem with cuckoldry
  • Parental Investment theory only applies to young children

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