Topic Seven, Part 10 - Sampling Methods Flashcards
What is Qualitative Data?
Collection of opinions from a consumer
What is Quantitative Data?
related to facts and numbers
What is Random Sampling?
individuals are randomly selected from a population list
What are the Advantages Random Sampling?
- Simple
What are the Disadvantages Random Sampling?
A complete and accurate population listing
may not be practical to carry out
What is Cluster Sampling?
The population are split into separate groups. Then a random group is selected
What are the Advantages Cluster Sampling?
- Quick and easy
- Doesn’t need complete population information
- Good for face-to-face surveys
What are the Disadvantages Cluster Sampling?
- Expensive for large groups
- Greater risk of sampling error
What is Quota Sampling?
Sample that is representative of the overall population. The population is divided by important variables
What are the Advantages Quota Sampling?
Quick and easy way of obtaining a sample
What are the Disadvantages Quota Sampling?
-Not random
Need to understand the population
What is Convenience Sampling?
Uses those who are willing to volunteer
What are the Advantages Convenience Sampling?
Subjects are readily available
Gather loads of information quickly
What are the Disadvantages Convenience Sampling?
Sample is not representative of the entire population
What is Stratified Sampling?
Classifying the population in sub-groups based on well known characteristics
