A meta-analysis is most useful when:

Question

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A meta-analysis is most useful when a particular issue has generated a large number of studies, some of which have produced weak or contradictory results. It allows for the combination of multiple studies to provide a more comprehensive understanding of the overall effect size and can help resolve conflicting findings. A meta-analysis is less helpful when there are not enough participants or when the experiment has never been replicated. If the statistical analysis indicates that the results are statistically significant but the hypothesis is not supported, it may be more appropriate to examine potential confounding variables or alternative explanations through further research.

A Meta-Analysis Is Most Useful When