Glen has limited funds left in his grant to pay participants to be in his experiment.He wants to know how many participants he needs to detect a difference between conditions.What statistical technique would help him estimate how many participants he needs?
A) Cohen's d
B) alpha cutoff levels
C) statistical power analysis
D) statistical significance

Question

Quizplus · Accepted Answer

Statistical power analysis helps to estimate the sample size needed to detect a difference between conditions based on the desired effect size, significance level, and statistical power. Cohen's d is a measure of effect size, alpha cutoff levels determine the level of significance, and statistical significance only determines if the results are significant or not.

Glen Has Limited Funds Left in His Grant to Pay