Indian Journal of Psychological Medicine
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REVIEW ARTICLE
Year : 2013  |  Volume : 35  |  Issue : 2  |  Page : 121-126

How to calculate sample size for different study designs in medical research?


1 Department of Pharmacology, Govt. Medical College, Surat, Gujarat, India
2 Independent Researcher, Kolkata, West Bengal, India

Correspondence Address:
Jaykaran Charan
Department of Pharmacology, Govt. Medical College, Surat, Gujarat
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0253-7176.116232

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Calculation of exact sample size is an important part of research design. It is very important to understand that different study design need different method of sample size calculation and one formula cannot be used in all designs. In this short review we tried to educate researcher regarding various method of sample size calculation available for different study designs. In this review sample size calculation for most frequently used study designs are mentioned. For genetic and microbiological studies readers are requested to read other sources.


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