When using a _____ hypothesis the researcher predicts that the groups being compared will differ,but does not predict how they will differ.
A)null
B)directional
C)one-tailed
D)two-tailed

Question

Quizplus · Accepted Answer

A two-tailed hypothesis predicts that the groups being compared will differ, but does not specify the direction in which they will differ. This is in contrast to a directional hypothesis (B) which predicts the direction of the difference, and a one-tailed hypothesis (C) which also predicts the direction of the difference but only in one direction. A null hypothesis (A) predicts that there will be no difference between the groups being compared.

When Using a _____ Hypothesis the Researcher Predicts That the Groups