Sampling process and sampling techniques

Question 1

What does the research group need to be based on

Answer 1

A precise description of who’s in the group

Question 2

What does the research population or target population refer to

Answer 2

Everyone who could be in the research group

Question 3

Why are samples used

Answer 3

Sometimes it is too expensive to research the whole research population

Question 4

Who backs the concept of sampling

Answer 4

McNeill and Chapman (2005)

Question 5

What are the 2 types of random sampling

Answer 5

Systematic random sampling - Choosing a number between 1 and 10 and choosing every 10th participant e.g 7 so 7, 17, 27 etc will be chosen
Stratified random sampling - splitting the group into different sampling frames and using systematic random sampling to select groups equal to the research population e.g. a class of 20 with 40% girls and 60% boys, you'd split up the boys and girls and choose 4 girls and 6 boys

Question 6

What is quota sampling

Answer 6

Like stratified sampling but the researcher decides how many people in each group are involved
- Lacks randomness so bias may creep in

Question 7

What is purposive sampling

Question 8

What is a key study that included purposive sampling

Answer 8

Goldthorpe - OMS

Question 9

What is opportunity sampling similar to

Answer 9

Purposive sampling

Question 10

What is snowball sampling

Answer 10

When each participant leads them to another. It’s good for investigating groups involved in deviant behaviour

Question 11

What is a disadvantage to volunteer and snowball sampling

Answer 11

They may fail to produce representative samples