An observed difference between two groups is MORE likely to be statistically significant if
A) the observed difference between the means is large
B) the observed differences between the scores within each group is small
C) the groups are large
D) all of the above are true

Question

Quizplus · Accepted Answer

A large difference between means, small variability within groups, and large sample sizes all increase the likelihood of a statistically significant result.

An Observed Difference Between Two Groups Is MORE Likely to Be