Sex Differences in Jealousy

  title={Sex Differences in Jealousy},
  author={Kenneth N. Levy and Kristen M Kelly},
  journal={Psychological Science},
  pages={168 - 173}
Studies have found that more men than women endorse sexual infidelity as more distressing than emotional infidelity, whereas more women than men endorse emotional infidelity as more distressing than sexual infidelity. Some evolutionary psychologists have proposed that this sex difference can be best conceptualized as reflecting evolution-based differences in parental investment that produce a need for paternity certainty among men and a need for male investment in offspring among women… 

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