Psychology Flashcards
What is sexual selection
It refers to the evolutionary explanation on why humans prefer some partners over other
- it argues that it a behavioural feature has been genetically inherited by one generation from another it must help attract a mate and have healthy offspring
What is anisogamy
- is the differences between male and female sex cells
Males’ sex cells (sperm) is produced in large quantities, quickly replenished and created continuously from puberty to old age.
On the contrary, females’ sex cells (eggs or ova) take a lot of energy to produce, are created in limited numbers during specific time intervals and their production only lasts for a certain number of fertile years.
These differences mean that males and females need to use different strategies to achieve reproductive success.
Before the invention of DNA testing, males could never be sure that a particular child is theirs, so the reproductively successful strategy for a male would involve having sex with, and impregnating, as many women as possible.
For women, however, the energetically expensive process of producing an egg and then carrying a child in the womb for nine months would mean that she needs a partner who will be committed to the relationship in the long run and provide resources for her and the child, ensuring the child’s survival.
Anisogamy can also explain the 2 types of sexual selection: inter sexual selection and intra sexual selection
What is inter sexual selection
- between sexes
- preferred strategy by female who chooses quality over quantity
Female have to be very choosy when picking their mate as it is a much bigger investment in terms of time, energy and resources
So female best mating strategy is to choose a genetically fit partner who can and will provide resources such as sperm, money, security, intelligence
This leaves men competing for the best ( high quality female)
What women prefer in male partners determines the features that are passed onto the offspring such as height
Women want to have sons who are also eventually found more desirable by opposite sex - known as the sexy sons hypothesis
This is the desirable characteristic of the female mate will be passed down to their sons
What is intra sexual selection
- preferred strategy by males who go for quantity over quality
- this is the competition between males to get the high quality female
The winner get to pass on his winning characteristics to his offspring
This has led to dimorphism- the obvious differences in sexes e.g. men being bigger/stronger
This is because in a male fight the larger male more likely to win and therefore mate but females don’t compete and so their is no evolutionary drive for larger females
Psychological consequences -acting more aggressively to protect female from competition
- mate either as many female as possible to to minimal energy required to produce sperm
- makes preference for youth and sensitivity and fertility in female as this suits their optimum mating strategy
Sexual selection - evaluation
- Buss found universal trends across 33 different countries and sample size of 10,000 adults
Results: women desired men with good financial prospects, both sexes wanted mates who were intelligent , men desired women who were younger(. In better position to have children)
The findings reflect sex differences in mate strategies due to anisogamy. Finding also generalizable giving further support to the evolutionary theory - Evidence to suggest males are more likely to engage in casual sex and engage in polygamous relationships
Clark and Hatfield found that 75% of college males compared to 0% of females would be willing to sleep with a stranger if this stranger had approached them and complimented them
Supports the idea that men have an evolutionary predisposition to impregnate as many women as possible due to high rate is sperm production and little energy to do so.( intra sexual selection)
3 social and cultural change
Women no longer dependent on men- they work and make their own money which means = rely less on men for resources
Chang compared partner preferences in china over 25 years
Finding:
Some had change but others remains the same, this is correlated with higher social change at the time
Suggest mate preferences are a combination of evolution and culture= theory doesn’t account for cultural differences = incomplete
-waynforth and Dunbar found that 43% of males sought youthful mate compared to 25% of females
They also found that 44% of males sought a physically attractive partner compared to 22% of females
Finally found that women advertise their physical attractiveness and men advertise their resources
- supports idea that males and females have different preferences in partners
Factors affecting attraction : self disclosure
What is self disclosure
- revealing personal info about yourself
Romantic partners reveal more about their true self as their relationship develops
These self disclosure about one deepest thought and feelings can strengthen a romantic bond when used appropriately
Factors affecting attraction : self disclosure
Social penetration theory
Altman and Taylor social penetration theory ,suggest how self disclosure is the gradual process of revealing your inner self to someone else
In romantic relationship it involves the reciprocal exchange of info between intimate partners
When one partner reveals some personal info they must display trust and the other partner must also reveal sensitive info
As they increasingly disclose more and more info to each other= romantic partners penetrate more deeply into each other lives= gain greater understanding of each other
- self disclose more reciprocated
Factors affecting attraction : self disclosure
Breadth and depth of self disclosure
According to Altman and Taylor self disclosure has 2 elements - breadth and depth
- at the start we disclose a lot about ourselves at the start of a relationship but what we reveal is superficial
Is the low risk info we would reveal to anyone
Breadth of disclosure is narrow as many topics are off limits in early stage of relationship. If reveal too much too soon= could threaten the relationship
However as relationship develops = self disclosure becomes deeper= removing more and more layers to reveal our true selves=
Eventually we are prepared to reveal intimate, high risk info- like painful memories, strongly held beliefs, secrets
Factors affecting attraction : self disclosure
Reciprocity of self disclosure
Reis and Shaver- point out for a relationship to develop, there needs to be reciprocal elements to disclosure
Once you have decided to disclose something that reveals your true self= hopefully partner responds in a way that’s rewarding, with understanding and also their own intimate thoughts and feeling
So there is a balance of self disclosure between both partners in a successful romantic relationship = increases feelings of intimacy and deepens the relationship
Factors affecting attraction : self disclosure
Evaluation
1 support from research study
- Sprecher and Hendricks studies heterosexual dating couples and found strong correlation between measures of satisfaction and self disclosure
This shows that if could use self disclose they can build stronger relationships = become more satisfied and committed to their romantic relationship
- Much self disclosure research is correlational such as sprecher and hendrick.
Although it’s usually assumed that greater self disclosure creates more satisfaction = correlation does not tell us if a valid conclusion to draw as it contain quantitative data
Means that findings may not be in detail and is likely researchers can ignore other factors affecting attraction like physical attractiveness = therefore factor too simplistic
3.cultural differences
Tang et al reviewed research literature regarding sexual self disclosure = concluded that men and women in USA self disclose significantly more sexual thought and feelings than men and women in China
The levels of disclosure could be linked to relationship satisfaction in those culture
- therefore limited explanation of romantic relationship = base in findings from individualistic culture not generalizable to other cultures
- Real life applications
- research in SD can help people who want to improve communication in their relationships
- Hass and Stafford found they 57% of gay men and women in study said that open and honest self disclosure was main way they maintain and deepen their committed relationships
Therefore this support use of therapies which focus on increasing the depth and breadth of SD for couples who stuggle with issues like trust and intimacy
- support the social penetration theory = increasing validity of theory
Factors affecting attraction: physical attractiveness
The importance of physical attractiveness
- shackelford and Larsen found that people with symmetrical faces are rated more attractive due to it being a signal of genetic fitness
People also attracted to faces with neotenous features such as widely separated and large eyes, a delicate chin, small nose— because these trigger a protective and caring instinct = valuable resource for female wanting to reproduce
Physical attractiveness not only important in start of relationship = McNulty et al found evidence that the initial attractiveness that bought partners together continued to be an important feature of relationship after marriage for at least several years
Factors affecting attraction: physical attractiveness
The halo effect
The halo effect suggest how physical attractiveness tends to have a disproportionate influence on our judgement of a person other attribute such as their personality
- have the preconceived idea that personality traits people must have are positive
Phrase counted by Dion ‘ what is beautiful is good’
E.g. Dion et al found that physically attractive people are consistently rated as kind, strong, sociable and successful compared to unattractive people
These beliefs increase the likelihood that such attractive people develop these traits, and so displays the process of a self- fulfilling prophecy
Factors affecting attraction: physical attractiveness
The matching hypothesis
The hypothesis states that people choose romantic partners who are roughly of similar physical attractiveness to each other.
To do this we make realistic judgment about our own value to potential partners
- this is to avoid being rejected by someone out of our league
- it is proposed by Elaine Walster and her colleagues
Evaluation - of psychical attractiveness
- Research support
Palmer and Peterson (2012) found that physically attractive people were rated as more politically knowledgeable and competent than unattractive people. This halo effect was so powerful that it persisted even when participants knew that these ‘knowledgeable people had no particular expertise.
the halo effect = found to apply in many other areas of everyday life, confirming that physical attractiveness is an important factor in the initial formation of relationships - Research support for matching hypothesis
Feingold-1988) carried out a meta-analysis of 17 studies and found a significant correlation in ratings of attractiveness between romantic partners. This is especially supportive of the matching hypothesis because the studies looked at actual partners, which is a more realistic approach. - PA is not affected extensively by cultural relativism, with both individualist and collectivist cultures finding similar features attractive,
as suggested by Cunningham et al (1995). These features include large eyes, high eyebrows and sharp cheekbones, and this is applicable across both Asian and Western male respondents, as demonstrated by Wheeler and Kim (1997). Therefore, this means that although the influence of physical attractiveness varies between individuals, what is considered ‘attractive’ is relatively consistent.
4.Research contradicting the matching hypothesis
Taylor et al. (2011) studied the activity logs of a popular online dating site
Online daters sought meetings with potential partners who were more physically attractive than them. It seems they did not consider their own level of attractiveness when making decisions about who to date.
Factors affecting attraction- filter theory
An explanation of relationship formation. It states that a series of different factors progressively limits the range of available romantic partners to a much smaller pool of possibilities.
The filters include social demography, similarity in attitudes and complementarity,
Factors affecting attraction- filter theory
Social demography - 1st level of filter
- refers to a wide range of factors that influences chances of potential partners meeting each other in the first place
They include geographical location (or proximity), social class, level of education, ethnic group, religion,
You are much more likely to meet people who are physically close and share several demographic characteristics- e.g ethnicity, religious beliefs, and educational level= most find such similarities attractive
The key benefit of proximity is accessibility. It doesn’t require much effort to meet people who live in the same area
Factors affecting attraction- filter theory
Similarity in attitude
The second filter is similarity in attitudes, which is particularly important in short-term relationship i.e. less than 18 months in duration.
This describes basic similarities in terms of core beliefs about significant topics, such as love, sex and religion.
Large dissimilarities in the attitudes expressed between two partners may cause the relationship to end, because of the incompatability that wor result in the long-term.
Factors affecting attraction- filter theory
Complementary - 3rd level of filter
The third filter concerns the ability of romantic partners to meet each other’s needs. Two partners complement each other when they have traits that the other lacks. For example, Or perhaps one partner is more dominant in the relationship than the other. Kerckhoff and Davis found that the need for complementarity was more important for the long-term couples.
. Complementarity is attractive because it gives two romantic partners the feeling that together they form a whole, which adds depth to a relationship and makes it more likely to floursh.
Factors affecting attraction- filter theory
Evaluation
research support,
For example, Peter Winch (1958) found evidence that similarities of personality, interests and attitudes between partners are typical of the earliest stages of a relationship
This echoes the matching hypothesis, but not just in terms of physical attractiveness.
Between partners happily married for several years, complementarity of needs is more important than similarity , according to Winch,
Filter theory suggest that people are initially attracted to each other because they are similar.
But there’s evidence that this direction of causality is wrong
, Davis and Rusbult (2001) discovered an attitude alignment effect in longer-term relationships. Romantic partners over time bring their attitudes into line with each other’s, again suggesting that similarity is an effect of initial attraction and not the cause.
This finding is not predicted by filter theory.
Lack of temporal validity
The rise of online dating in recent years has changed beyond recognition the process of beginning a romantic relationship. It has reduced the importance of some social demographic variables.
Technology such as the Internet and mobile apps like Tinder have made meeting potential partners easier than ever, to the extent that we might well pursue a date with someone outside the usual demographic limits (e.g. different culture or social class) than would have applied, say, 30 years ago.
- so lacks TV as is can only explain dating phenomena which have been restricted to era before the internet
- research has challenged the claim of filter theory that complementary become more important than similarity later in a relationship.
Anderson et al found in a longitudinal study that cohabiting partners became more similar in their emotional responses overtime
suggest complementarity is not necessarily a common feature of longer term relationships - invalid theory