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  2. Volume 9, Issue 3
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Online ISSN: 2515-8260

Volume9, Issue3

How big should my sample be? A practical approach to sample size calculation in health studies.

European Journal of Molecular & Clinical Medicine, 2022, Volume 9, Issue 3, Pages 6145-6155

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Abstract

In any health study, Sample size estimation is important in detecting scientific and statistically significant differences. Therefore, sample size estimation is a critical step in the design of a planned research protocol. "Samples which are too small prove nothing, and samples which are too large can prove anything." For example, using too many participants in a study is expensive and exposes more subjects to the procedure. Similarly, if the study is underpowered, it will be statistically inconclusive and may make the entire exercise a failure. In this article, sample size estimation for survey type of studies, case-control studies, cohort studies, clinical trials, and qualitative research are discussed in detail in a single platform with suitable examples.
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(2022). How big should my sample be? A practical approach to sample size calculation in health studies.. European Journal of Molecular & Clinical Medicine, 9(3), 6145-6155.
. "How big should my sample be? A practical approach to sample size calculation in health studies.". European Journal of Molecular & Clinical Medicine, 9, 3, 2022, 6145-6155.
(2022). 'How big should my sample be? A practical approach to sample size calculation in health studies.', European Journal of Molecular & Clinical Medicine, 9(3), pp. 6145-6155.
How big should my sample be? A practical approach to sample size calculation in health studies.. European Journal of Molecular & Clinical Medicine, 2022; 9(3): 6145-6155.
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