As the Size of the Sample in Each Group Increases

Multiple Choice

As the size of the sample in each group increases, all else remaining the same, what will be the impact on the strength of evidence for finding a difference in the average scores on the three exams?

A) There will be more evidence of a difference.
B) There will be less evidence of a difference.
C) There will be no impact on the strength of evidence of a difference.
D) There is not enough information to tell.