Evolutionary Explanation of Aggression - Mate Retention Strategies

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1)Direct guarding - involves male vigilance over a partners behaviour
2)Negative inducements - issuing threats or dire consequences for infidelity.
Such behaviours linked to violence.
Shackleford et al 2005 - studied intimate partner violence in heterosexual couples
- Evolutionary Exp - Agg - Mate Retention Strategies
  - Wilson and Daly 1996 identify several mate retention strategies involving agg and phys violence.
Men and women in 107 married couples completed diff questionnaires(married less than one year)
Men completed mate retention inventory, assessing mate retention behaviours
Women completed spouse influence report - measured extent of partners violence.
Found a strong positive correlatin between mens report of mate retention behaviours and womens reports of partners physical violence.
Men who use guarding or negative inducements more likely to use physical violence.

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