Define sexual selection×
Selecting a mate because of the advantageous characteristics they possess e.g. IQ or physical ability
Define anisogamy
Sexual reproduction in which gametes of the two sexes are dissimilar
How do females act when choosing a sexual partner? Why?
Very selective - invest 9 months into pregnancy, need a partner who’s genetically healthy to pass down to offspring
What aspects do females look for in regards to sexual selection?
Genetically fit
Wealthy
Tall
What is the ‘sexy sons’ hypothesis?
Females sexually select male partners with desirable traits so their sons inherit the traits
How do males act in regards to sexual selection?
Compete with each other for the best mate - have greater chance for sexual selection (millions of sperm produced)
What do males look for in regards to sexual selection?
Young
Healthy
Hourglass figure
What is mate guarding?
Male guards the female to ensure she doesn’t mate with anyone else
Define cuckoldry
The fear of a males’ sexual partner getting pregnant by another man, and having to raise the child
State three disadvantages of the evolutionary explanation of sexual selection
State three advantages of the evolutionary explanation for sexual selection
Describe the study conducted by Buss (1989)
Investigated what males and females look for in a long term partner - 10,000pps across 37 cultures.
Rated 18 characteristics using a 4 point scale.
Females desired: good finance, resources and ambition
Males desired: reproductive value, younger and fertile
Both desired: intelligence, kindness
State two disadvantages of Buss’ study
State an advantage of Buss’ study
Large sample of 10,000 pps across 37 cultures - no cultural bias, can generalise
Define self disclosure
Revealing of person, intimate thoughts, feelings and information about ourselves to someone else
What does self-disclosure reveal about a relationship?
People reveal more personal info to people they like. People who self-disclose are seen as likeable, kind and trustworthy
Define reciprocal self disclosure
The expectation of the same level of self-disclosure from others as you give out
State the four factors that affect the success of self-disclosure
State three advantages of the importance of self-disclosure
State two disadvantages of the importance of self-disclosure
What is the ‘Boom or Bust’ Theory by Cooper (1997)?
Those in internet relationships self-disclose earlier than usual - gets intense quickly (boom), or is difficult to sustain due to pace (bust)
Describe Sprecher’s 2013 self-disclosure study
Investigated whether reciprocal self-disclosure was important in determining attraction.
156 American undergrads in pairs - 66% female-female, 33% male-female - spoke over Skype. One group reciprocal, one group one-sided.
Assessed on the experience (liking, closeness, perceived similarity and enjoyment) - found reciprocal led to a greater experience
State an advantage of Sprecher’s self-disclosure study
State three disadvantages of Sprecher’s self-disclosure study