Wiley Encyclopedia of Clinical Trials
Sample Size Calculation for Comparing Proportions
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, Chapter
Wang, H; Chow, SC
January 1, 2007
In practice, the objective of sample size calculation is to select the minimum sample size in such a way that the desired power can be obtained for detection of a clinically meaningful difference at the prespecified significance level. Therefore, the selection of the sample size depends on the magnitude of the clinically meaningful difference, the desired power, the prespecified significance level, and the hypotheses of interest under the study of choice (e.g., a parallel design or a crossover design).
Duke Scholars
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Wang, H., & Chow, S. C. (2007). Sample Size Calculation for Comparing Proportions. In Wiley Encyclopedia of Clinical Trials (pp. 1–11). https://doi.org/10.1002/9780471462422.eoct005
Wang, H., and S. C. Chow. “Sample Size Calculation for Comparing Proportions.” In Wiley Encyclopedia of Clinical Trials, 1–11, 2007. https://doi.org/10.1002/9780471462422.eoct005.
Wang H, Chow SC. Sample Size Calculation for Comparing Proportions. In: Wiley Encyclopedia of Clinical Trials. 2007. p. 1–11.
Wang, H., and S. C. Chow. “Sample Size Calculation for Comparing Proportions.” Wiley Encyclopedia of Clinical Trials, 2007, pp. 1–11. Scopus, doi:10.1002/9780471462422.eoct005.
Wang H, Chow SC. Sample Size Calculation for Comparing Proportions. Wiley Encyclopedia of Clinical Trials. 2007. p. 1–11.