Data Samples

Question 1

Data Samples

Answer 1

Population

Sample

Sample Frame - source material what we use to draw our samples from

Question 2

Why Sample?

Answer 2

Practicality

Time

Costs

Errors

Testing

Question 3

How do you go about and do this sampling?

Answer 3

Sample Design

4 Main Sample Designs

Random Sampling - anyone can be selected everyone has an equal chance, no bias

Quota Sampling - set a limit of people your talking to

Stratified Sampling - Comes from strata which mean different layer for example you could layer it by year of study, so you can strata it by different layers

Clustered Sampling - looking at the individuals groups, looking at questionnaires, interviews

Data Collection Method

Data Reliability