(See related pages)
Studying this chapter should enable you to:
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Distinguish between a sample and a population. |
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Explain what is meant by the term "representative sample". |
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Explain how a target population differs from an accessible population. |
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Explain what is meant by "random" sampling and describe briefly three ways of obtaining a random sample. |
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Use a table of random numbers to select a random sample from a population. |
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Explain how stratified random sampling differs from cluster-random sampling. |
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Explain what is meant by systematic sampling, convenience sampling, and purposive sampling. |
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Explain how the size of a sample can make a difference in terms of representativeness of the sample. |
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Explain what is meant by the term "external validity". |
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Distinguish between population generalizability and ecological generalizability and discuss when it is (and when it is not) appropriate to generalize the results of a study. |