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6 Cards in this Set
- Front
- Back
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Opportunity sampling
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Uses people from target population who are available at the time.
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Self-selected sampling
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Participants volunteer. For example, by answering an advert.
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Quota sampling
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The population is first segmented into mutually exclusive sub-groups, just as in stratified sampling. Then judgement is used to select the subject or units from each segment based on a specified proportion.
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Random sample
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Each individual in the population of interest has an equal likelihood of selection
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Stratified sample
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A stratified sample is a mini-reproduction of the population. Population is divided into characteristics of importance for the research. For example, by gender, social class, etc. Then the population is randomly sampled within each category .If 38% of the population is college-educated, then 38% of the sample is randomly selected from the college-educated population.
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Systematic sampling
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Chooses subjects in a systematic way. For example, every 10th person from a list or register.
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