Estimating sample size for epidemiologic
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Owen J. Devine; James M. Smith
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Article
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1998
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John Wiley and Sons
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English
โ 140 KB
๐ 2 views
Sample size requirements for epidemiologic studies are usually determined on the basis of the desired level of statistical power. Suppose, however, that one is planning a study in which the participants' true exposure levels are unobservable. Instead, the analysis will be based on an imprecise surro