sampling techniques strengths + weaknesses

Question 1

opportunist - strength

Answer 1

easy and quick

Question 2

opportunist - weakness

Answer 2

• similar type of people
• population bias (doesn’t represent whole population)
• research bias (picking and choosing)

Question 3

random - strength

Answer 3

• fair
• equal chance of being picked
• not biased

Question 4

random - weakness

Answer 4

not everything is represented

Question 5

systematic - strength

Answer 5

assuming list order has been randomised, offers unbiased chance of representative sample

Question 6

systematic - weakness

Answer 6

time consuming

Question 7

stratified - strength

Answer 7

fair representation of all groups within population

Question 8

stratified - weakness

Answer 8

takes time and more resources to plan

Question 9

volunteer - strength

Answer 9

• less research bias
• lower attrition rates
• often achieving large sample size through reaching wide audience