What is a meta-analysis?

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Language/s: English
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Short Description:

An explanation of meta-analysis from Oxford University’s Centre for Evidence-Based Intervention.

Key Concepts addressed:


A meta-analysis is a method for statistically combining the results of studies that are included in a systematic review, to come to a conclusion about the overall effects of an intervention.

A single research trial or ordinary literature review can tell you if an intervention has a statistically significant effect. In other words, it will report on whether a treatment had an effect that could not have occurred by chance, and therefore is likely to have been brought about by the intervention.

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