Sampling AO3

Question 1

What is a strength of a random sample?

Answer 1

Is free from researcher bias since the researcher has no influence over who is selected

Question 2

What is a limitation of a random sample?

Answer 2

• It is difficult and time-consuming
• A complete list of target population may be extremely difficult to obtain

Question 3

What is a strength of systematic sample?

Answer 3

It avoids research bias and is also fairly representative

Question 4

What is a strength of stratified sample?

Answer 4

• It avoids researcher bias
• Produces representative sample so findings can be generalised

Question 5

What is a limitation of a stratified sample?

Answer 5

Stratification is not perfect. Complete representation of the target population is not possible.

Question 6

What is a strength of opportunity sample?

Answer 6

It is convenient as it reduces time and effort to do it.

Question 7

What is a limitation of opportunity sample?

Answer 7

• There is bias because sample is unrepresentative of target population as it is drawn from a very specific area

Question 8

What is a strength of volunteer sample?

Answer 8

Is easy and less time-consuming

Question 9

What is a limitation of volunteer sample?

Answer 9

Volunteer bias occurs which attracts a person which is helpful and curious
=> affects how findings can be generalised to other people who are not like this