sampling methods

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5 Terms

1
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random:

every person has an equal chance of being selected, eg names in a hat

2
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systematic:

ppts are selected using a set pattern, eg every nth person is selected from a list

3
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stratified:

ppts are selected into sub groups (gender, age) and then randomly selected

4
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opportunity:

ppts who are both available and willing to take part

5
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volunteer:

ppts select themselves for the study