If we have two related samples, the power of our test will
A) increase as the correlation between the two samples increases.
B) increase as the correlation between the two samples decreases.
C) be at its maximum when the correlation is zero.
D) The correlation is irrelevant.

Question

Quizplus · Accepted Answer

The power of our test will increase as the correlation between the two samples increases because a stronger correlation between the samples means that they are more related, which strengthens the signal we are trying to detect with our test. When the correlation is zero, there is no association between the samples, and therefore no signal to detect, resulting in the lowest power.

If We Have Two Related Samples, the Power of Our