Cohen's conventions for the t test for independent means are approximately _____ for a small effect size, ____ for a medium effect size, and ______ for a large effect size?
- .1, .3, .5
- 2, 4, 6
- .2, .5, .8
- 3, 6, 9
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To determine Cohen's conventions for the t test for independent means, we need to consider the effect size. Cohen's conventions classify effect sizes as small, medium, or large. The conventions for effect size are expressed as Cohen's d values.
For a small effect size, Cohen's d is typically around 0.2.
For a medium effect size, Cohen's d is typically around 0.5.
For a large effect size, Cohen's d is typically around 0.8.
Given the options provided, the correct answer is:
- .2, .5, .8