Can you explain what effect size is?
Effect size is a quantitative measure of the magnitude of a phenomenon. It helps to understand the strength of a relationship or the size of a difference.
Why is effect size important in research?
Effect size is crucial because it provides context to statistical significance, helping researchers understand the practical implications of their findings.
How do I calculate effect size?
Effect size can be calculated using various methods, such as Cohen's d for comparing two means or Pearson's r for correlation.
Can you give an example of effect size in a study?
Sure! In a study comparing two teaching methods, an effect size of 0.8 would indicate a large difference in student performance between the two methods.
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