The statement "It is hypothesized that men and women will differ on reaction time measures" best illustrates a:
A) one-tailed test.
B) two-tailed test.
C) null hypothesis.
D) z test.

Question

Quizplus · Accepted Answer

This statement suggests a comparison without specifying the direction of difference (i.e., it does not state whether men are expected to have faster or slower reaction times than women), which is characteristic of a two-tailed test. A two-tailed test is used when the research hypothesis does not predict the direction of the effect.

The Statement "It Is Hypothesized That Men and Women Will