What’s the idea?
Meta-analysis is a way of combining results from a range of different studies in one particular area.
What does it mean?
A meta-analysis collects together a range of quantitative studies around a particular intervention. It converts the results of each study into a common metric – effect size, for example – and combines them so it can estimate the overall impact of the intervention. There is a further level too. A meta-meta-analysis combines the results from various meta-analyses to rank the intervention/approach/strategy that has the most impact (Simpson, 2017).
What are the implications for teachers? Meta-analyses review the research and combine some of the available papers so you don’t have to read them all separately
Meta-analyses use explicit, accountable, rigorous research methods. They potentially provide a more objective review of the research compared with other review methods
Meta-analyses combine data from various independent studie
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