Sampling Flashcards
1
Q
What is a volunteer sampling?
A
- The sample is those members of the target population who select themselves.
2
Q
What is random sampling?
A
- The sample is methods of the target population is selected without any bias.
3
Q
What is stratified sampling?
A
- The sample is members of the target population selected in an unbiased way but guaranteed to be representative in certain ways.
4
Q
What is a cluster sample?
A
This selects members of the target population who have been gathered together for another purpose.
5
Q
What is an opportunity sample?
A
a sampling technique used to select participants from a target group to take part in a research study.
6
Q
What are the strengths of opportunity sampling?
A
- quick and conveninent
7
Q
What are the weaknesses of opportunity sampling?
A
- experimenter bias
- may be unrepresentative
8
Q
What are the strengths of volunteer sampling?
A
- no experimenter bias
9
Q
What are the weaknesses of volunteer sampling?
A
- slow and inconvenient
- may be unrepresentative
10
Q
What are the strengths of random sampling?
A
- no bias at all
11
Q
What are the weaknesses of random sampling?
A
- slow and inconvenient
- may be unrepresentative
12
Q
What are the strengths of stratified sampling?
A
- no bias at all
- representative of strata used
13
Q
What are the weaknesses of stratified sampling?
A
- slow and inconvenient
- may be unrepresentative
