Effect sizes

Effect sizes statistically describe the difference between two groups. The general guidelines for Cohen’s d are that 0.2 is a small effect, 0.5 is a medium effect, and 0.8 is a large effect (however, as with all general guidelines, the context and detail of the study should also be taken into consideration). For example, if a group were measured before and after an intervention, and the effect size was 0.5, it could be considered that the intervention had a medium effect on the performance of the group.

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Posted on April 24, 2018 by modsu in . Comments Off on Effect sizes