What is a comparing power?

Comparing power refers to the capability of a statistical test to detect a true effect or difference when one exists. It is often quantified by the probability of correctly rejecting the null hypothesis (commonly denoted as 1 - β), where β represents the probability of a Type II error. Higher comparing power indicates a greater likelihood of identifying significant effects, which is influenced by factors such as sample size, effect size, and significance level. In research, achieving adequate comparing power is essential for drawing reliable conclusions.