sampling Flashcards
1
Q
what is sampling?
A
a sample is a group of subjects that has been chosen from a larger group, the population, for investigation
2
Q
the value of sampling will depend upon…
A
- the sample technique used
- how the sample was carried out
- the size of the sample
3
Q
the size of a sample will depend upon a number of factors…
A
- the budget available
- the importance of accuracy
- the degree of confidence in results
4
Q
what are the three types of sampling?
A
- random sampling
- quota sampling
- stratified sampling
5
Q
what is random sampling?
A
a sample is selected for study from a population where each individual is chosen entirely by chance and has an equal chance of being selected
6
Q
what is quota sampling?
A
the population is first segmented into subgroups before a judgement is made in selecting respondents that are representative of that subgroup
7
Q
what is stratified sampling?
A
the population is first segmented into subgroups before respondents are randomly selected from within that subgroup
