Practical calculation of mean, pooled variance, variance, and standard deviation, in meta-analysis studies
In order to perform the data analysis process, mean value and variance or standard deviation are required in a meta-analysis study for integrating data. However, sometimes reports published from studies only report Median, Range and Sample size. When no indication of the distribution of primary da...
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| Main Authors: | , |
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| Format: | Book |
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Tehran University of Medical Sciences,
2020-01-01T00:00:00Z.
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| Online Access: | Connect to this object online. |
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| Summary: | In order to perform the data analysis process, mean value and variance or standard deviation are required in a meta-analysis study for integrating data. However, sometimes reports published from studies only report Median, Range and Sample size. When no indication of the distribution of primary data (normal distribution or lack of normal distribution) is available, items such as mean and variance and standard deviation can be estimated based on simple formulas . The purpose of this article is merely to introduce proven formulas with applied examples. |
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| Item Description: | 10.18502/npt.v7i1.2294 2383-1154 2383-1162 |