Sampling

Question 1

What is a population?

Answer 1

Entire group of people researcher interested in or who are interested in study

Question 2

What is the target population

Answer 2

People from population with desired characteristics

Question 3

What is the sample?

Answer 3

Subgroup who will take part in research

Question 4

Strengths of random sampling and

Answer 4

Unbiased, all member of target population have equal chance of being selected - high chance of achieving representative sample

Question 5

Limitations of random sampling

Answer 5

Takes time to make list and content all selected

Question 6

What is systematic sampling

Answer 6

Selecting every nth person

Question 7

Strengths is systematic sampling

Answer 7

Unbiased chance of gaining representative sample

Question 8

Limitations of systematic sampling

Answer 8

Not truly bias or random

Question 9

Strengths of opportunity sampling

Answer 9

Easy and inexpensive

Question 10

Limitations of opportunity sampling

Answer 10

Bias, drawn from small part of population

Question 11

What is stratified sampling

Answer 11

Subgroups within population each showing different characteristic, each section sampled individually

Question 12

strengths of stratified sampling

Answer 12

More representation that other methods because there is proportional and randomly selected representation

Question 13

Limitations of stratified sampling

Answer 13

Very time consuming to identify subgroups then randomly select and contact

Question 14

Strengths of volunteer sampling

Answer 14

Variety of participants, may make sample more representative and less bias

Question 15

Limitations of volunteer sampling

Answer 15

Volunteer bias