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Meta-Analysis is the term for a special type of study designed to investigate all the studies that currently exist on a topic.
A statistical analysis known as a meta-analysis integrates the findings of various scientific investigations. When there are numerous scientific studies that address the same issue and each one reports measures that are anticipated to have some degree of error, meta-analyses can be conducted. The objective is then to utilize statistical methods to determine the pooled estimate that is the closest to the unobserved shared reality based on how this inaccuracy is perceived. The literature on evidence-based medicine views meta-analytic data as the most reliable source of evidence.
Meta-analyses not only have the ability to estimate the unknown impact size, but they also have the potential to compare data from other research and spot trends, areas of disagreement, or other intriguing associations that may emerge from a large number of investigations.
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