When an experiment has a large sample size, and there is a large difference between the results in the experimental and control groups, how likely is it that the experimental results are statistically significant?
A) very unlikely
B) unlikely
C) somewhat likely
D) very likely

Question

Quizplus · Accepted Answer

A large sample size and a large difference between the results in the experimental and control groups increase the power of the experiment and make it more likely to detect a statistically significant difference. Therefore, it is very likely that the experimental results are statistically significant.

When an Experiment Has a Large Sample Size, and There