[Excerpts taken from the article, “The Statistics of Replication” by Larry Hedges, pubished in the journal Methodology] Background “Some treatments of replication have defined replication in terms of the conclusions obtained by studies (e.g., did both studies conclude that the…

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[NOTE: This is a repost of a blog that Prasanna Parasurama published at the blogsite Towards Data Science]. “The confidence intervals of the two groups overlap, hence the difference is not statistically significant” The statement above is wrong. Overlapping confidence…

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