Sample methods
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9 Terms
1
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Makes inferences about the population
observational study
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Makes inferences about cause and effect
Experiment
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Simple random sample
Equal chance of being selected
4
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Stratified random sample
People with something in common are split into groups, then randomly selected
5
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Cluster
Random people selected, put into groups, then randomly selected
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Systematic
A pattern is used to select a sample
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Multistage
Combines sampling methods
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Convenience
Biased
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Note 
Flashcards (124)