Non-random Sampling Flashcards
(6 cards)
1
Q
What is quota sampling?
A
An interviewer or researcher selects a sample that reflects the characteristics of the whole population.
2
Q
What is opportunity sampling?
A
Taking the sample from people who are available at the time the study is carried out and who fit the criteria you are looking for.
3
Q
What are the advantages of quota sampling?
A
- Allows a small sample to still be representative of the population
- No sampling frame required
- Quick, easy and inexpensive
- Allows for easy comparison between different groups within a population
4
Q
What are the disadvantages of quota sampling?
A
- Non-random sampling can introduce bias
- Population must be divided into groups, which can be costly or inaccurate
- Increasing scope of study increases number of groups, which adds time and expense
- Non-responses are recorded as such
5
Q
What are the advantages of opportunity sampling?
A
- Easy to carry out
- Inexpensive
6
Q
What are the disadvantages of quota sampling?
A
- Unlikely to provide a representative sample
- Highly dependent on individual researcher
