What is Reliability?
A reliable method of getting the same results
Some examples of Reliability
Quantitative methods =
- Surveys
- Close ended interviews
What is Validity?
A valid method where it gives you a full picture
Not repeatable
Some examples of Validity
Qualitative methods =
- Participant observations
- Open ended interviews
What is Representativeness?
Whether the participant’s are a good cross-section of the population
An example of Representativeness
Stratified Sampling =
- 50% of female, male, class, ethnicity etc