Psychology-Relationships Flashcards
What are evolutional explanation?
They focus on the adaptive nature of behaviour, i.e. modern behaviours are believed to have evolved because they solved challenged faced by our distant ancestors and so became more widespread in the gene pool
What is the theory of sexual selection?
Developed by Charles Darwin. It explains the evaluation of characteristics that confer a reproductive advantage as opposed to a survival advantage. In sexual selection, an individual’s survival is not stake, but rather it is their ability to leave more descendants. Evolution is driven by competition for mates, and the development of characteristics that ensure reproductive success
What is the nature of sexual selection?
Intrasexual selection, intersexual selection, and sexual selection and long-term mate preferences
What is intrasexual selection?
In intrasexual selection, individuals of one sex (usually males) must outcompete other members of their sex in order to gain access to members of the other sex. Successful individuals are able to mate and so are able to pass on their genes. The losers are not able to mate and so are not able to pass on their genes. Whatever characteristic leads to success in these same-sex contests becomes more widespread in the gene pool by virtue of the reproductive advantage this gives to the winner
What is intersexual selection?
In intersexual selection, members of one sex evolve preferences for desirable qualities in potential mates. Members of the opposite sex who possess these characteristics will then gain a mating advantage over those who do not. The preferences of one sex, therefore, determine the areas in which the other sex must compete
Why does sexual selection affect long term mate preference?
Mechanisms for mate choice evolve because being choosy requires time and energy, and the costs of mate choice can even impair survival in some cases. The rationale behind sexual selection is that ransom mating is essentially stupid mating. It pays be choosy, as the genetic quality of a mate will determine half the genetic quality of any offspring. Low quality mates will be more likely to produce unattractive, unhealthy offspring. High quality mate=high quality offspring
How does sexual selection affect long-term mate preferences for females?
For females, the means being attracted to males who (i) are able to invest resources in her and her children, (ii) are able to physically protect her and her children, (iii) show promise are sufficiently compatible to ensure minimal costs to her and her children (Buss). However, males do not give away their resources indiscriminately
How does sexual selection affect long-term mate preferences for males?
Males would be most attracted to females who display signals of fertility, an indication of their reproductive value
What is the key study for evolutionary explanations for partner preferences?
Buss’s research, which explored sex differences in long-term mate choice and found universal trends in male and female preferences
What was the procedure for Buss’ research?
The study involved 10,000 people from 37 different cultures. Participants were asked to rate each of 18 characteristics (eg physicals attractiveness, good financial prospect) on how important they would be in choosing a mate. A four point scale was used ranging from ‘3’ (indispensable) to ‘0’ (irrelevant)
What were the findings for Buss’ research?
The main results were that women more than men desired men desired mates who were ‘good financial prospects’. This translated into desire for men with resources or qualities such as ambition and industriousness. Men placed more importance on physical attractiveness. This provides cues to a woman’s health and hence her fertility and reproductive values. Men universally wanted mates who were younger than them-an indication that men valued increased fertility and potential mates. Both sexes wanted mates who were intelligent (linked to good parenting) and kind (linked to long-term relationships)
What are the evaluation points for evolutionary explanations for partner preferences?
Cultural traditions may be just as important as evolutionary forces, female preferences for high-statues men may not be universal, mate choice in real life, mate choice and the menstrual cycle, and is there a human equivalent of the peacock’s tail
How is the point that ‘cultural traditions may be just as important as evolutionary forces’ an evaluation point for evolutionary explanations for partner preferences?
Bernstein points out gender differences in mate preference patterns may stem from cultural traditions rather than being the result of evolved characteristics. For example, the fact that women have been denied economic and political powers in many cultures might account for their tendency to rely on the security/economic resources provided by men. Women valued this more in cultures where women’s status and education were very limited
How is the point that ‘female preferences for high-status men may not be universal’ an evaluation point for evolutionary explanations for partner preferences?
Buller claims that evolutionary psychologists are mistaken in their claims of a universal female preference for high status men as mates. He argues that the majority of studies attempting to determine female mate preferences have been carried out on female undergraduate students. These expect to achieve high educational status so have expectations of high income levels. The fact that these prefer high-status men may be explained by general preference for high-status men or in terms of preference for men with similar interests/education/prospects
How does ‘mate choice in real life’ evaluate evolutionary explanations for partner preferences?
Studies such as Buss’s survey of mate choice might suffer from a serious problem of validity-i.e. they give us an indication of expressed preferences rather than being a reflection of what actually happens in real life. However, many real-life studies also support these mate-choice hypotheses. Eg a study of actual marriages in 29 cultures confirmed that men choose younger women. Some argue the questionnaires used in Buss’s study are more valid measures than real life marriage stats
How is ‘mate choice and the menstrual cycle’ an evaluation point for evolutionary explanations for partner preferences?
Research by Penton-Voak et al suggests that, female mate choice varies across the menstrual cycle. Women chose a slightly feminised version of a male face as ‘most attractive’ for long term. But for short term, during high conception risk phase of cycle, the preferred face shape was more masculinised. Sexual selection may well have favoured females who pursue a mixed mating strategy under certain conditions. May choose a main partner whose feminised appearance suggests kindness/cooperation in parental care, but male with masculine appearance when conception is most likely as they likely have more testosterone, but a healthy male despite this may have a highly efficient immune system, which is valuable to pass down
How is the question, ‘is there a human equivalent of the peacock’s tail?’ an evaluation point for evolutionary explanations for partner preferences?
Research supports the view that some human traits that serve no survival purpose have evolved purely as a result of sexual selection. Eg a preference for highly creative partners has been a characteristic of mate choice throughout evolutionary history. Nettle and Clegg compared a sample of contemporary British poets and artists and a control group of males in non-creative professions. They found males in creative professions tended to have significantly more sexual partners, and the amount of their creative output correlated positively with amount of sexual partners
How important is physical attractiveness in mate selection?
Buss’s research on partner preferences in different cultures demonstrated that men in particular place great importance on physical attractiveness when choosing a mate. Physical importance=important cue to woman’s health/fertility/reproductive value. More recent research suggests however physical attractiveness may be just as important to women when choosing partners but some research suggests this is only true for women that are looking for short term relationships (but men also rely on it for long term relationships)
What is the ‘matching hypothesis’?
It claims that, when initiating romantic relationships individuals seek out partners whose social desirability approximately equals their own. According to this view, when choosing a partner, individuals must first assess their own ‘value’ in the eyes of a potential romantic partner and then select the best available candidates who would be most likely to be attracted to them. Although both individuals would theoretically be attractive to the most socially desirable potential partners, by opting for partners of similar social desirability to themselves they can maximise their chances of a successful outcome
How does the matching hypothesis link with physical attractiveness?
Although the hypothesis initially proposed people would pair with someone as socially desirable as themselves in terms of wide range of ‘assets’, over time it has come to be associated specifically with matching on physical attractiveness alone. Walster et al referred to these mating choices as ‘realistic’ choices, because each individual is influenced by the chances of having their affection reciprocated. Realistic choices must consider a number of different factors, including desires, whether they are wanted in return, and the availability of other desirable alternatives
What is the key study into physical attractiveness?
Walster et al’s study
What was the procedure for Walster et al’s study?
In order to test the matching hypothesis they advertised a ‘computer dance’ for new students at University of Minnesota. From large number of students who purchased tickets, 177 males and 170 females were randomly selected to take part in the study. When collecting their tickets, four student accomplices surreptitiously rated them on physical attractiveness. Participants then completed questionnaire to asses personality, intelligence etc, and told data fathered would allocate their ideal partner, though it was actually random. During intermission of dance, participants completed questionnaire about their dates, and again six months later
What were the findings of Walster et al’s study?
The findings did not support the matching hypothesis. Once participants had met their dates, and regardless of their own physical attractiveness, they responded more positively to physically attractive dates and were more likely to subsequently try to arrange dates with them if they were physically attractive. Other factors such as personality/intelligence did not affect liking the fates or any subsequent attempts to date them
What are the evaluation points for physical attractiveness and partner preference?
Speed dating and the challenge to traditional views of attraction, complex matching, research support for sex differences in the importance of physical attractiveness, matching may not be that important in initial attraction, implications of sex differences in the importance of physical attractiveness