Sampling

Question 1

Opportunity sampling

Answer 1

participants chosen due to proximity

Question 2

Random sampling

Answer 2

participants chosen randomly

Question 3

Systematic sampling

Answer 3

participants chosen in an orderly way (such as every nth participant)

Question 4

Quota sampling

Answer 4

proportions in the sample and the target population are the same

Question 5

Volunteer sampling

Answer 5

participants put themselves forward by approaching the researcher, rather than the other way around

Question 6

Snowball sampling

Answer 6

initial group of participants recruit people they know to expand the sample, and they do the same (creating a snowball effect)

Question 7

Strengths of opportunity sampling

Answer 7

Easy and quick (comparatively)

Question 8

Weaknesses of opportunity sampling

Answer 8

Not likely to be representative (as drawn from a small section of population) and researcher bias (they choose the participants)

Question 9

Strength of random sampling

Answer 9

Unbiased

Question 10

Weaknesses of random sampling

Answer 10

Time consuming (requires access to the entire population) and could be unrepresentative

Question 11

Strength of systematic sampling

Answer 11

Unbiased

Question 12

Weaknesses (three) of systematic sampling

Answer 12

Not truly random, system may introduce a bias, and not guaranteed to be representative

Question 13

Strengths of quota sampling

Answer 13

Very representative and allows for analysis of differences

Question 14

Weaknesses (four) of quota sampling

Answer 14

Rarely truly representative, time consuming, can build in bias, hard to fill all subcategories exactly the same

Question 15

Stratified sampling

Answer 15

every sub-category is guaranteed to feature in the study

Question 16

Strength of volunteer sampling

Answer 16

may access a variety of people you normally wouldn’t have access to

Question 17

Weaknesses (three) of volunteer sampling

Answer 17

motivation may influence behaviour, volunteers may have unrepresentative characters, may introduce a bias

Question 18

Strengths (five) of snowball sampling

Answer 18

cheap, simple, cost effective, allows researcher to reach populations that are difficult to sample, and requires little planning and fewer workforce

Question 19

Weakn