18. MULTI-STAGE SAMPLING Flashcards
1
Q
- What does Multi-Stage sampling utilise?
A
- it utilises the hierarchical structure of the natural
clusters and groups - these clusters are made up of individuals within the
population
2
Q
- What happens after we randomly select the Clusters?
A
- we proceed to randomly select individuals within the
clusters
3
Q
- What is involved in the Multi-Stage sampling procedure?
A
- several Random Sampling Stages
4
Q
- List the Random Sampling Stages.
A
STAGE ONE:
- this is the random selection of large clusters
- EG: schools
STAGE TWO:
- this is the random selection of smaller clusters within
the larger clusters
- EG: class
STAGE THREE:
- this is the random selection of individuals within
smaller clusters
5
Q
- What are the 2 advantages of Multi-Stage sampling?
A
- IT MAY IMPROVE THE SAMPLE REPRESENTATIVENESS
- much more than Simple Random Sampling
- especially if the population is geographically diverse
- or if the sample is too small - IT IS LESS COSTLY
- it is less time consuming
- this depends on the number of stages
6
Q
- What is the one disadvantage of Multi-Stage Sampling?
A
- THE REPRESENTATIVENESS OF THE SAMPLE MAY BE
COMPROMISED:
- if too few clusters are selected
- if the clusters are too specific
- if the clusters contain too few individuals
7
Q
- What kind of sampling does this image represent?
A
- Simple Random Sampling
8
Q
- What kind of sampling does this image represent?
A
- Systematic Sampling
9
Q
- What kind of sampling does this image represent?
A
- Stratified Sampling
10
Q
- What kind of sampling does this image represent?
A
- Cluster Sampling