Sex Differences in Parental Investment

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1. Why are women less jealous than men in relationships?

  • Men are more paranoid about infidelity
  • Women have full parental certainty, whereas men don't have full parental certainty so this may lead to cuckcoldry and wasting their resources on another man's child so to stop infidelity and therefore cuckcoldry they act jealous as to stop it
  • Women are more understanding than men
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2. Problem with this theory being based on evolution

  • Its based on hunter-gatherer times and can be applied to this modern world as 2 species of apes closely related to humans show little or no parental investment wheras modern day fathers are much more involved in bringing up their children
  • Its deterministic to suggest this theory
  • Cause and effect of evolution and sex differences in parental investments cannot be found

3. What did Anderson (1999) find?

  • Men are more negatively affected by sexual infidelity as shown by physiological tests and self-reports
  • Men who are unsure of their parental uncertainty will spend less time with these offspring?
  • Men don't discriminate in the way they treat their own biological children and their partner's children from a previous relationship
  • Male cichild fish prefer largest females as they can produce more eggs

4. Which study found that men were more negatively affected by sexual infidelity and women were more affected by emotional infidelity as shown by physiological tests and self reports?

  • Anderson (1999)
  • Buss et al.
  • Willerman
  • Anderson (2007)

5. Which study found that men who are unsure of their parental uncertainty will spend less time with these children?

  • Anderson (2007)
  • Anderson (1999)
  • Bellis et al.

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