When you have a directional hypothesis,the most conservative way to test it would be to use a(n)
A)one-tailed test in the predicted direction.
B)one-tailed test in the opposite-of-that-predicted direction.
C)one-tailed test,with the region of rejection in the positive tail.
D)two-tailed test.

Question

Quizplus · Accepted Answer

A two-tailed test is the most conservative approach when testing a directional hypothesis because it accounts for the possibility of effects in both directions, thus requiring more evidence to reject the null hypothesis compared to a one-tailed test.

When You Have a Directional Hypothesis,the Most Conservative Way to Test