To decide whether first-year students given study skills training have a better grade point average (GPA) at the end of the year than students without training, researchers will need to determine the _______ of GPA differences between the two groups.
A) statistical significance
B) standard deviation
C) variance
D) frequency distribution

Question

Quizplus · Accepted Answer

Statistical significance is used to determine the likelihood that any differences observed between the two groups are not due to chance. It is the most appropriate measure to determine whether the difference in GPA between the two groups is meaningful or not. Standard deviation, variance, and frequency distribution are not directly relevant to determining the significance of the difference between the two groups.

To Decide Whether First-Year Students Given Study Skills Training Have