What is the advantage of using two-sided (as opposed to one-sided) p-values?
A) They are more likely to produce significant results.
B) They have greater statistical power.
C) They are less common in research.
D) They allow the researcher to interpret unexpected but significant relationships.

Question

Quizplus · Accepted Answer

Two-sided p-values are advantageous because they allow researchers to detect and interpret significant relationships in the data that were not anticipated. This is because two-sided tests evaluate the possibility of extreme outcomes in both directions (greater than or less than), unlike one-sided tests which only consider one direction of deviation from the null hypothesis.

What Is the Advantage of Using Two-Sided (As Opposed to One-Sided)