Relationships Flashcards
Sexuel selection:
- These are competitions for mates between individuals of the same sex, effects the evolution of certain traits.
- If a characteristic increases the individuals chance of reproduction, this characteristic will be adaptive because that animal will have more offspring.
Intra sexual selection, mate competition:
- Members of one sex (usual male) will compete with each other fro females.
- Winners get to mate - losers genes aren’t passed on.
- Traits leading to success are passed on.
- According to Trivers (1972), when one sex (f) invests considerably more than the other (m), members of the latter (m) will compete among themselves to mate with members of the former (f). This is due to women’s reproductive resources being more precious: limited offspring + amount of time.
Anisogamy:
- Refers to the differences between males and females having different sex/reproductive cells. Due to this, there is a difference in the level of investment in reproduction.
Intersexual selection, mate choice:
- The presence of one sex (usually females) for members of the opposite sex who possess certain qualities.
- Runaway Process: overtime we see an increase in a certain gene.
- Biological Market Place explanation: genes that show attractive features are more ‘saleable’.
Evolutionary explanation of relationships, Clark and Hatfield:
When male and female university students were propositioned by an opposite-sex stranger on campus, 75% of males agreed to the request to spend the night together, whereas no females did, supporting evolutionary explanation of relationships.
Evolutionary explanation of relationships, Waynforth and Dunbar:
- Studied lonely hearts advertisement in the US.
- Women generally put more physical descriptions, whilst men offered resources (fit/mature/successful).
Evolutionary explanation of relationships, evaluation:
- Looks from a Western POV
- Can’t apply to non heterosexual couples
- Not as relevant in todays society
- Reductionist and biologically deterministic
+ Consistent with anisogamy: difference in male and female sex cells
+ Buss (1989) study of 37 sample of people from around the world supports sexuel selection.
Overview of self-discoloure:
- Relationship formation is built on trust with another person.
- You don’t tell a stranger personal things, only once you’ve gotten to know them.
- ‘Onion metaphor’ used.
- People share a lot, but there are ‘off limits’ topics.
Self disclosure, Reis and Shaver (1988):
- For a relationship to develop, there has to be a balance of self disco life between partners.
- Instead of one sharing and one listening, there needs to be an even exchange in return so to lead to greater intimacy and deeper understanding.
Self disclosure, Sprecher et al, aim:
- To investigate the role of reciprocal self-disclosure in relationships.
Self disclosure, Sprecher et al, method:
- 156 American US students, f-f and f-m over Skype
- C1: self disclosure is reciprocated
- C2: self disclosure isn’t reciprocated
Self disclosure, Sprecher et al, results:
C1 p’s reported a greater liking, closeness, similarity and enjouement to one another compared to C2.
Self disclosure, Sprecher et al, conclusion:
- Reciprocity of self disclosure has positive outcomes for romantic relationships.
Self disclosure, Hass and Stafford (1998):
- 57% of gay men and women said that open and honest self discourse was the main way they maintained and deepened their committed relationships.
- Self disclosure research allows for individuals to improve their own personal relationships - real life application.
Filter theory, 3 factors:
- Social demographics
- Similarity in attitudes
- Complementarity