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. 

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

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

  • Men would not discriminate against paying for their biological children and their step-children's collage education
  • 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
1 of 10

Other questions in this quiz

2. 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

3. What is the Extent of Postnatal Male Investment?

  • Men have an evolved drive for sexual variation and therefore are less likely to commit to postnatal investment
  • Equal to female postnatal parental investment
  • Males provide resources for child post-natally
  • Great Extent

4. Why do Human Mothers Invest More Prenatally?

  • human infants are born relatively immature compared to other animals so they would not survive if left to their own devices
  • Women are biologically less able to hunt and so raise children instead
  • Gametes are more costly and less numerous than male sperm so can only have a limited amount of offspring
  • In order to appear more attractive to males

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

  • Men would not discriminate against paying for their biological children and their step-children's collage education
  • 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
  • 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

Comments

No comments have yet been made

Similar Psychology resources:

See all Psychology resources »See all Relationships resources »