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KMID : 1207720130050030235
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Clinics in Orthopedic Surgery
2013 Volume.5 No. 3 p.235 ~ p.242
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How to Calculate Sample Size and Why
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Kim Jee-Hyoung
Seo Bong-Soo
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Abstract
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Why: Calculating the sample size is essential to reduce the cost of a study and to prove the hypothesis effectively.
How: Referring to pilot studies and previous research studies, we can choose a proper hypothesis and simplify the studies by using a website or Microsoft Excel sheet that contains formulas for calculating sample size in the beginning stage of the study.
More: There are numerous formulas for calculating the sample size for complicated statistics and studies, but most studies can use basic calculating methods for sample size calculation.
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KEYWORD
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Sample size
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