Concept

Effect Size vs Statistical Significance

The distinction between whether a finding is statistically detectable given a large enough sample (significance) and how much that finding actually matters in practice (effect size, e.g. Cohen's D).

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Concept

Effect Size vs Statistical Significance

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  • But the thing about statistical significance is that if you have a large enough sample you can sort of reach that type of significance regardless of how much the effect matters practically. A better way to look at things is using an effect…