1.2 methods (social)

Question 1

what is random sampling?

Answer 1

• when every member of the population has a chance of being selected
• e.g by using a random generator on the internet

Question 2

what is volunteer sampling?

Answer 2

• samples collected by asking for people who are willing to take part
• e.g ad on a website

Question 3

what is opportunity sampling?

Answer 3

• sample produced by selecting people who are the most easily available at the time
• e.g asking people at home

Question 4

what are the benefits of random sampling?

Answer 4

• less likely to have a biased sample as there’s an equal chance of selection
• increases chance of having a representative sample

Question 5

what are the issues with random sampling?

Answer 5

• takes more time and effort than other methods
• a list has to be created first
• not all randomly selected people will take part, so will be more like volunteer sample

Question 6

what are the benefits of volunteer sampling?

Answer 6

• convenient way to find people, less people tend to drop out
• good way of getting specialised group of participants

Question 7

what are the issues with volunteer sampling?

Answer 7

volunteers have personality traits such as willing to help which affects the results

Question 8

what are the benefits with opportunity sampling?

Answer 8

• most convenient as it takes least amount of preparation
• may be the only technique available

Question 9

what are the issues with opportunity sampling?

Answer 9

• most biased
• sample is drawn from a very small part of the target population who may share particular traits which would make the test unreliable