WK 4 Observational research and sampling

Question 1

population

Answer 1

large group of interest

Question 2

sample

Answer 2

small group taken from population

Question 3

representative sampling

Answer 3

a sample that is likely to exhibit the same characteristics of the population in which you are interested in

Question 4

probability sampling

Answer 4

each person has a known probability of being selected

Question 5

non-probability sampling

Answer 5

each person has an unknown probability of being selected

Question 6

sampling frame

Answer 6

a list of people in the population

Question 7

probability sampling methods

Answer 7

simple, stratified and cluster

Question 8

simple random sampling

Answer 8

each person in the population has an equal probability of being selected

Question 9

stratified random sampling

Answer 9

drawing seperate random samples from subgroups in the population

Question 10

cluster sampling

Answer 10

select random clusters within the population and then samples randomly from those clusters

Question 11

non-probability sampling methods

Answer 11

convenience, quota and snowball

Question 12

convenience sampling

Answer 12

the sample consists of people who are available

Question 13

quota sampling

Answer 13

convenience sampling from subsets of the population

Question 14

snowball sampling

Answer 14

sample members are asked to recruit other members of the population from their social networks