Sampling

Question 1

What is simple random sampling?

Answer 1

any 2 groups of equal size within population where everyone is equally likely to be selected

Question 2

What is stratified sampling?

Answer 2

Stratify population into homogenous groups then use simple random sampling to draw samples from each group

Question 3

What is cluster sampling?

Answer 3

when natural sampling unit is a group/cluster of individual units, sampling within a group/cluster

Question 4

What is systematic sampling?

Answer 4

the selection of every kth element from a sampling frame or from a sequential stream of potential respondents (e.g. every 12th visitor)

Question 5

what is quota sampling?

Answer 5

specify desired number of respondents with certain characteristics

Question 6

What is snowball sampling?

Answer 6

relies on referrals from initial respondents

Question 7

what is judgement sampling?

Answer 7

researcher selects sample based on their judgement

Question 8

Population of inference

Answer 8

population about which the researcher intends to draw conclusions

Question 9

target population

Answer 9

population of inference minus any groups the researcher has chosen to disregard

Question 10

frame population

Answer 10

portion of the target population to which the survey material/devices delimit, identify, and subsequently allow access

Question 11

survey sample

Answer 11

those members of the sampling frame who were chosen to be surveyed