Which of the following reasons best explains the value of effect sizes?
A) Significant effects always have large effects
B) Significant effects don't always have large effects. In fact, they can have very small effects
C) Large effects tend to be significant
D) Effect sizes communicate something different than significance testing. They inform the researcher or scientist whether or not the findings can generalize to the population or not.

Question

Quizplus · Accepted Answer

Effect sizes provide information about the magnitude of an effect, which can be small even if statistically significant. Significance testing alone does not convey the size or practical importance of an effect.

Which of the Following Reasons Best Explains the Value of Effect