9.1.3

Evaluation of Sexual Selection Behaviour

Test yourself

Changes in Partner Preferences

Over the past century, partner preferences have changed because of changes in social norms and sexual behaviour.

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Changing partner preferences

  • Over the past century, partner preferences have changed.
  • Changes to social norms and sexual behaviours, which develop much faster than evolutionary timescales imply, have influenced partner preferences.
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Changing partner preferences cont.

  • These kinds of changes have come about through cultural factors, such as the availability of contraception.
  • Females are also more highly represented in the workplace and are no longer dependent on men to provide for them.
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Bereczkei et al. (1997)

  • Bereczkei et al. (1997) argued that this social change has consequences for women’s mate preferences, which may no longer be resource oriented.
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Chang et al. (2011)

  • Chang et al. (2011) compared partner preferences in China over 25 years and found that some have changed but others remain the same. The changes corresponded with huge social changes.
  • So mate preferences are the outcome of a combination of evolutionary and cultural influences. Any theory that fails to account for both is a limited explanation.

Evolutionary Theory

Evolutionary theory makes predictions about partner preferences that are testable.

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Clark and Hatfield (1989)

  • Clark and Hatfield (1989) sent male and female psychology students to a university campus.
  • They were told to approach students and say to them: ‘I have been noticing you around campus. I find you to be very attractive. Would you go to bed with me tonight?’
Illustrative background for __Clark and Hatfield (1980)__ findings Illustrative background for __Clark and Hatfield (1980)__ findings  ?? "content

Clark and Hatfield (1980) findings

  • No female students agreed to the request.
  • 75% of males agreed immediately.
  • This supports evolutionary theory.
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Clark and Hatfield (1980) cont.

  • This is because the study found that females are pickier than males when it comes to selecting sexual partners.
  • This implies that males have evolved different strategy to females to make sure they have reproductive success.
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Singh (1993, 2002)

  • Evolutionary theory predicts that males have a preference for female body shapes that indicate fertility.
  • Singh (1993, 2002) wanted to test this by studying the role of female waist-hip ratios in influencing male preference.
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Singh (1993, 2002) findings

  • He reported that male preference is dependent on the ratio of waist to hip measurements, rather than overall female body size.
  • Males generally found any hip and waist sizes attractive so long as the ratio of one to the other was about 0.7.
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Singh (1993, 2002) conclusions

  • The combination of wider hips and narrow waist is attractive because it is an ‘honest signal’ (it is hard to fake) that the woman is fertile but not currently pregnant.
Illustrative background for __Waynforth and Dunbar (1995)__ Illustrative background for __Waynforth and Dunbar (1995)__  ?? "content

Waynforth and Dunbar (1995)

  • Waynforth and Dunbar (1995) studied lonely hearts advertisements in American newspapers.
  • They discovered that women were more likely to offer physical attractiveness while men offered resources and focussed on attributes such as success and ambition.

Jump to other topics

1Social Influence

2Memory

3Attachment

4Psychopathology

5Approaches in Psychology

6Biopsychology

7Research Methods

8Issues & Debates in Psychology (A2 only)

9Option 1: Relationships (A2 only)

10Option 1: Gender (A2 only)

11Option 1: Cognition & Development (A2 only)

12Option 2: Schizophrenia (A2 only)

13Option 2: Eating Behaviour (A2 only)

14Option 2: Stress (A2 only)

15Option 3: Aggression (A2 only)

16Option 3: Forensic Psychology (A2 only)

17Option 3: Addiction (A2 only)

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