When the proportion of variance explained by some treatment is larger than 0.25,we conclude that there is a large effect in the population.

Name: When the proportion of variance explained by some treatment is larger than 0.25,we conclude that there is a large effect in the population.
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A proportion of variance explained greater than 0.25 indicates a substantial amount of variability in the outcome measure can be attributed to the treatment or intervention, thus indicating a large effect.

When the Proportion of Variance Explained by Some Treatment Is