Piliavin el al. Flashcards
What is bystander effect? Piliavin el al.
It bystanders in an emergency situation often do not offer help. In a large group each person feels less responsibility and this may explain bystander behaviour.
Aim? Piliavin el al.
To investigate the effects of the 4 independent
Design? Piliavin el al.
- Field experiment
- Independent measure design
- Using observational techniques
4 IV:
- Type of victim (drunk or cane)
- race
- presence of model
- group size.
DV:
- time it took for help to be offered
- number of people who offered it.
Sample used in Piliavin el al.?
Opportunity sample of 4,450 passengers on the new york subway (weekdays 11am-3pm)
60% of passengers were men.
materials in Piliavin el al.?
“victim” carrying either a black cane or liquor bottle wrapped in brown paper, standing next to a pole in the middle of the carriage.
Design
What type of experiment was Piliavin el al.?
Field experiment
Design
What are the 4 IVs in Piliavin el al.?
Type of victim (drunk or cane)
- race
- presence of model
- group size
Design
What are the 2 DVs in Piliavin el al.?
- time it took for help to be offered
- number of people who offered it.
Design
What measure design was used in Piliavin el al.?
Independent measure design
Procedures
How many trails were carried out of 1 ride on the new york subway?
103 trails took place of one ride on the new york subway.
Procedures
How long did one new york subway ride last?
One ride on the new york subway lasted 7.5 minutes.
Procedures
How many students boarded on each trial?
4 students boarded using different doors.
Procedures
What did the victim do in the study?
The victim stood next to the pole in the centre of critical area. After 70 secs, the victim collapsed and remained on the floor until they received help or until the train stopped and the model helped him up.
