Sampling

Question 1

Define Random Sampling

Answer 1

Choosing participants without any awareness or bias

Question 2

Give an advantage and disadvantage of random sampling

Answer 2

Advantage - Usually produces a representative sample

Disadvantage - Still a chance an unrepresentative sample can be randomly chosen

Question 3

Define Stratified Sampling

Answer 3

Choosing participants and categorising them into groups based on characteristics

Question 4

Give an advantage and disadvantage of Stratified Sampling

Answer 4

Advantage - Provides more depth into sub groups

Disadvantage - Difficult and takes time

Question 5

Define Opportunity Sampling

Answer 5

Recruiting participants who are available at the time

Question 6

Give an advantage and disadvantage of Opportunity Sampling

Answer 6

Advantage - Easy to obtain

Disadvantage - Not everyone has an equal chance at being chosen

Question 7

Define Volunteer Sampling

Answer 7

When participants self-select themselves to take part

Question 8

Give an advantage and disadvantage of Volunteer Sampling

Answer 8

Advantage - Easy to obtain

Disadvantage - Demand characteristics