Sampling methods

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what is the definition of sampling?
selecting a representative sample from a target population and then generalising from the results of the study.
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why do we use sampling?
We use sampling as we cannot study everyone in our target population.
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what are the three methods of sampling?
random, voluntary and opportunity
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what is the definition of random sampling?
Every member of the target group has a equal chance of being selected
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what is the definition of voluntary sampling?
People actively volunteer to the study by responding to advertisement
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what is the definition of opportunity sampling?
Participants that are available and willing to be studied
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what are the advantages and disadvantages of random sampling?
advantages: unbiased- all members have equal chance, quck and easy....... Disadvantages: cannot guarentee a representative sample
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what are the advantages and disadvantages of voluntary sampling?
advantages: wide variety of participants, allow in depth study more accurat, mopre representative sample...... Disadvantages; biased as it people are more motivated to do the study and can have more time
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what are the advantages and disadvantages of opportunity sampling?
advantages: easy and quick, takes less time..... Disadvantages: unlikley to be representative of the target population
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Card 2

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why do we use sampling?

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We use sampling as we cannot study everyone in our target population.

Card 3

Front

what are the three methods of sampling?

Back

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Card 4

Front

what is the definition of random sampling?

Back

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Card 5

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what is the definition of voluntary sampling?

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