Sampling

Question 1

Random Sampling

Answer 1

-Every member of the target population has an equal chance of being selected

Question 2

How may a random sample be collected

Answer 2

-Using a lottery system
-Names out of a hat
-Random number generator

Question 3

Strengths of random sampling

Question 4

Limitations of random sampling

Question 5

Systematic sampling

Answer 5

-Selecting every nth person from a list of the target population
(E.G every 5th person in a register)

Question 6

Strengths of systematic sampling

Question 7

Limitations of systematic sampling

Question 8

Stratified sampling

Answer 8

-Dividing the target population into subgroups called strata based on shared characteristics, and selecting them proportionally

Question 9

Example of strata

Answer 9

-Gender
-ethnicity etc

Question 10

Strengths of stratified sampling

Question 11

Limitations of stratified sampling

Question 12

Opportunity sampling

Answer 12

Selecting the most readily available participants at a time

Question 13

How may particpants in an opportunity sample be recruited

Answer 13

-Asking people on the streets

Question 14

Strengths of opportunity sampling

Question 15

Limitations of opportunity sampling

Question 16

Volunteer sampling

Answer 16

(Self selected)

-Participants choose to take part/ self select after seeing an advertisement.

Question 17

Strengths of volunteer sampling

Question 18

Limitations of volunteer sampling