A power analysis allows you to determine the number of participants needed if you also know
A) alpha.
B) effect size.
C) alpha and power.
D) alpha, power, and effect size.

Question

Quizplus · Accepted Answer

A power analysis requires knowledge of the alpha level (the probability of making a Type I error), the power (the probability of correctly rejecting a false null hypothesis), and the effect size (the magnitude of the effect you are testing for) to determine the appropriate sample size for a study.

A Power Analysis Allows You to Determine the Number of Participants