Selection Of Participants

Question 0

What is the volunteer method?

Answer 0

Advertise in a newspaper or notice board

Question 1

What are the 3 main methods of selections of participants?

Answer 1

Random
Volunteer
Opportunity

Question 2

What is a strength of using the volunteer method?

Answer 2

Access to a variety of participants which makes the sample more representative and less biased

Question 3

What is an opportunity sample?

Answer 3

Asking people most easily available at the time e.g. People walking in the street

Question 4

What is a strength to using the opportunity sample?

Answer 4

Takes less time and is the easiest method

Question 5

What is the random method?

Answer 5

Each memeber if the population gets an equal chance

The easiest way is to draw numbers out of a hat or give everyone a number and use a random number table to chose

Question 6

What is a strength of using thr random method?

Answer 6

Unbiased as all members of the target audience have an equal chance

Question 7

What is a weakness of using the random method?

Answer 7

Biased because the sample is too small

Question 8

What is a weakness of the volunteer method?

Answer 8

Biased because the participants are more likely to be motivated and/ with extra time on their hands

Question 9

What is a weakness of the opportunity method?

Answer 9

Biased because th sample is drawn from a small part of the population