Social Psychology, Sampling

What is random sampling?
Where everyone in the target population is available for selection and are chosen randomly.
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What are the advantages of random sampling?
There is no bias and its clear how participants are chosen.
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What are the weaknesses of random sampling?
It's difficult to ensure everyone in the target population is represented and there can still be some bias.
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What is stratified sampling?
Where the number of representatives from each group should be a smaller scale of how they are in the target population.
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What are the advantages of stratified sampling?
All groups are represented and so it is a fair method.
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What are the disadvantages of stratified sampling?
It is difficult to represent each group to get accurate generalisability and having rules set out by the study rules out individual factors.
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What is opportunity sampling?
Where researchers take whoever is available, there's no structure to their sample.
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What are the advantages of opportunity sampling?
It can be more ethical as screening can be done and its quicker.
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What are the disadvantages of opportunity sampling?
There's more chance of bias as researchers choose the sample and it rules out those who are not available or not willing.
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What is volunteer sampling?
Where participants select themselves in response to advertisements.
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What are the advantages of volunteer sampling?
More ethical as participants know they're in a study and they're interested so less likely to be biased.
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What is meant by the target population?
The wider group of people that the findings should apply to.
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What is meant by a biased sample?
A sample that isn't representative of the target population.
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What is meant by a representative sample?
A cross-section that is typical of the target population.
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What is meant by a sampling frame?
A section of the target population from which the sample is drawn.
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Other cards in this set

Card 2

Front

What are the advantages of random sampling?

Back

There is no bias and its clear how participants are chosen.

Card 3

Front

What are the weaknesses of random sampling?

Back

Preview of the front of card 3

Card 4

Front

What is stratified sampling?

Back

Preview of the front of card 4

Card 5

Front

What are the advantages of stratified sampling?

Back

Preview of the front of card 5
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