Piliavin (1969) - Sample Flashcards
1
Q
What was the sample?
A
Approx 4500 people using the New York underground at the time the study was conducted
2
Q
What was the percentage of black people and what was the percentage of white people in the sample?
A
Approx 45% black
Approx 55% white
3
Q
On average how big was the sample in the carriage where the procedure was conducted?
A
43 people
4
Q
On average how big was the sample in the critical area?
A
8 people
5
Q
What sampling method was used?
A
Opportunity sampling
6
Q
Strengths of the sampling method used?
A
Quick + easy - data can be gathered quickly
7
Q
Weaknesses of the sampling method used?
A
All available at the same place at the same time - probably all have something in common - low external validity
Could be biased
