Research Methods - Sampling Flashcards
1
Q
Bias
A
Certain groups being over/under represented within a sample
2
Q
Generalisation
A
Application to the wider population
3
Q
Volunteer sampling
A
Participants self-select themselves for a research study
4
Q
Opportunity sampling
A
Choosing people who are around/available at the time
5
Q
Stratified sampling
A
Number in group/number in population x sample size
6
Q
Systematic sampling
A
Selecting the sample based off an nth term in the target population
7
Q
Random sampling
A
Equal chance of being selected from the population
8
Q
Strengths of random sample
A
- Laws of probability makes it representative
- Free from researcher bias
9
Q
Limitations of random sample
A
- Difficult & time consuming
- Unrepresentative of population
- Participants may refuse to take part
10
Q
Strengths of systematic sampling
A
- Objective system makes it free from bias
- Fairly representative
11
Q
Limitations of systematic sampling
A
- Time consuming
- Not an equal chance of being selected
- May refuse to take part
12
Q
Strengths of stratified sampling
A
- Mathematic method makes it representative & generalisable
- Avoids bias
13
Q
Limitations of stratified sampling
A
- Time consuming
- Not reflecting how people are different
14
Q
Strengths of opportunity sampling
A
- Easy & minimal input
- Cost efficient
15
Q
Limitations of opportunity sampling
A
- Researcher bias
- Unrepresentative
