What is the effect of increasing statistical power?
A) Reduce the range of dependent variables that can be tested
B) Reduce the probability of a type II error without a corresponding increase in type I error
C) Reduce the number of participants required
D) Increase the applicability of the results to the real-world

Question

Quizplus · Accepted Answer

Increasing statistical power reduces the probability of a type II error (failing to reject a false null hypothesis) without necessarily increasing the probability of a type I error (incorrectly rejecting a true null hypothesis). This means that with higher power, a study is more likely to detect an effect if there is one, without increasing the risk of finding an effect when there isn't one.

What Is the Effect of Increasing Statistical Power