How does the effect size influence the power of a test?
- Effect size has no influence on power
- It depends on the sample size
- Larger effect sizes decrease power
- Larger effect sizes increase power
The power of a test is influenced by the effect size - the magnitude of the difference or relationship you're testing for. Larger effect sizes increase the power of a test because they create a larger signal relative to the noise, making it easier to detect an effect if one exists.
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