2.1.8 Non-representative sampling

Question 1

What are methods of non-representative sampling?

Answer 1

• Snowball sampling.
• Opportunity sampling.

Question 2

What is snowball sampling?

Answer 2

• Collecting a sample by contacting a key number of individuals who are asked to suggest others.
• A useful way to gain a contact of people who may be difficult to find.

Question 2

What is opportunity sampling?

Answer 2

• Choosing from individuals who are easiest to access or a captive audience.