Sampling Techniques AO3

Question 1

What are the strengths of random sampling?

Answer 1

• free from researcher bias because they have no control over who gets selected
• cheap

Question 2

What are the strengths of systematic sampling?

Answer 2

• free from researcher bias as they have no control over who gets selected
• fairly representitive

Question 3

What are the strengths of statified sampling?

Answer 3

• free from researcher bias as they have no control over who gets selected
• it reprsents subdivisions of the population

Question 4

What are the strengths of oppotunity sampling?

Answer 4

1. convenient
2. cheap

Question 5

What are the strengths of volunteer sampling?

Answer 5

minimal imput from researcher required

Question 6

What are the weaknesses of random sampling?

Answer 6

• time consuming
• not guaranteed to be representative as sub groups aren’t considered
• not suitable for large populations

Question 7

What are the weaknesses of systematic sampling?

Answer 7

• time consuming
• not entirely unbiased as the nth number isn’t random

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Question 8

What are the weaknesses of stratified sampling?

Answer 8

can’t represent everyone as individual differences can’t be accounted for

Question 9

What are the weaknesses of oppotunity sampling?

Answer 9

• unrepresentative of target propulation
• suffers from researcher bias as they control who is selected

Question 10

What are the weaknesses of volunteer sampling?

Answer 10

• only atypical members of population will respond (affected by researcher bias)
• only the poeple who see ad have a chanse of being selected