Sampling

Question 1

states there is a difference but doesn’t say the direction the results will go

Answer 1

systematic
stratified
opportunity
volunteering
random

Question 2

define random sampling

Answer 2

each member of the target population has an equal chance of being picked for the sample

Question 3

explain how to conduct a random sample

Answer 3

researcher needs a full list of the target population

all names are put into a container

all number of names are equal to the sample required

the computer randomly pulls out the names

Question 4

define systematic sampling

Answer 4

every nth item in the population is chosen as part of the sample.

Question 5

explain how to conduct a systematic sample

Answer 5

researcher needs a full list of the target population

the researcher researcher selects every nth person until the sample is chosen

Question 6

define opportunity sample

Answer 6

researcher asks available members of the target population to take part

Question 7

define volunteer sampling

Answer 7

participants self-select to take part in the study, likely through an ad or newspaper

Question 8

define stratified sampling

Answer 8

stratifies the target group into sections, each showing a key characteristic which should be present in the final sample
then each of those sections is sampled individually
the sample thus created should contain members from each key characteristic in a proportion

Question 9

explain how to conduct a stratified sample

Answer 9

strata groups are identified with their proportion in the target group. random sampling is then used to select the number of pp’s required from each strata