What is the relationship between effect size and statistical significance?
A) Significant results have meaningful effect sizes. Effect sizes are meaningless without statistical significance.
B) Significance at alpha = .05 is always a smaller effect than significance at alpha = .01
C) There is no relationship between statistical significance and effect size whatsoever.
D) All else equal, larger effects are more likely to be significant.

Question

Quizplus · Accepted Answer

All else equal, larger effects are more likely to be significant. This is because statistical significance is based on the magnitude of the effect relative to the variability in the data, so larger effects are more likely to exceed the threshold for significance. However, it's important to note that statistical significance does not necessarily mean that the effect is practically significant or meaningful in real-world terms.

What Is the Relationship Between Effect Size and Statistical Significance