Hassett Et Al (methods, sample) Flashcards
What was the research method?
- Field experiment
- Controlled observation (behavioural checklist)
- Correlational study .
Feild experiment as normal, outdoor housing. free to intercate with toys or not
Name 1 aim of the study?
To investigate whether toy preferencs in monkeys resembled thoes of children. In order to test whether sex differences in toy preference was biolgically determined.
Name 1 other aim of the study
To see if socialisation processes, or biological mechanisms affect sex stereotypical toy choice in rhesus monkeys.
What was the IV?
- Whether the monkey was male or female
What was the DV?
- Activities with the the toys (measured with controlled observation)
What was the experimental design?
- Independent measures design
How was the study a correlational design?
- Corelational analysis conducted on the results.
- To look for a relationship between monkeys rank and the frequency/duration of activities with each toy type
The study involved a comparison.
- The data from the study on the mokeys was compared to another study with similar data involving children.
(Berenbaum and Hines, 1992)
What type of monkeys were used?
Rhesus Monkeys
What is the species of Rhesus Monekys?
- Macaca Mulatta
The rhesus monkeys were members of a…,
- multi-male, multi-female social group
- Of 135 animals that had lived together for more than 25 years
Where were the Monkeys Housed?
YNP= Yerkes National Primate (Research Centre)
Describe features of the social group of monkeys
- Multiple matrilline social structure
- group members had various age ranges (infants-adults)
Multiple matrilline social structure- species typical
Matrilineal definition
- kinship is based on the female relative
( children stay with mum)
Prenatally definition
- Before birth
Describe the number of animals in the sample (removed animals)
- Began with 135 monkeys
- 39 infants were not coded due diffulty of consistent identification. 14 were removed as they had beene exposed to varying hromonal treatments prenatally.
- Leaving 23 females and 11 males to be used in the final analysis
How much monkeys were used in the final analysis?
- 23 females, 11 males
Monkets who had fewer than 5 behaviours/ did not intercate were excluded
Why were 14 monkeys removed from the final analysis?
they had been exposed to varying hormonal treatments prenatally.
Why were 39 (newborns 0-3 months) monkeys removed from the final analysis?
difficulty in consistent individual identification.
Where were the monkeys housed?
- Housed with their social group.
- 25m x 25m outdoor compounds
- Had temperature controlled indoor quaters
What food/water were the monkeys given?
- Monkey chow 2x a day
- Supplemented once a day with fruits and vegetables.
- Water continously avaible
Why were observations of grooming behaviours used to determine rank
- The higher rank the more they would be groomed by other monkeys
What is grooming?
- Social intercation
- Where a individual sits close to another
- Combs through their hair, removes dead skins or parsites
- Or just touches another
