Sampling Techniques Non-Representative

Question 1

Description of Snowball Sampling

Answer 1

1) Collect a sample by contacting key individuals

2) Individuals suggest who else to ask

Question 2

[SS] Advantages

Answer 2

• Can contact those who may be difficult to find/persuade
• Cheap as it relies on personal referrals

Question 3

[SS] Who are those who may be harder to find/persuade?

Answer 3

Criminals

Question 4

[SS] Disadvantages

Answer 4

• Reliance on referrals can lead to bias

Question 5

[SS] What impact could result in harder statistical significance data to identify?

Answer 5

Could be hard to conclude the quantitative data results

Question 6

Quick definition Opportunity Sampling

Answer 6

Choosing individuals that are easier to access

Question 7

[OS] Who are examples of individuals that are easier to access?

Answer 7

• Passer byers in the street
• A class of pupils

Question 8

[OS] Advantages

Answer 8

• Quick, easy
• Accessible

Question 9

[OS] Disadvantages

Answer 9

• Sampling bias; lack validity
  Not representative of target sample