A _____ hypothesis states that experimental and control groups are expected to be different, whereas a _____ hypothesis states which way groups are expected to vary.
A) directional; nondirectional
B) directional; null
C) nondirectional; directional
D) nondirectional; null

Question

Quizplus · Accepted Answer

A nondirectional hypothesis states that there is a difference between groups without specifying the direction of the difference, while a directional hypothesis specifies the expected direction of the difference between the groups.

A _____ Hypothesis States That Experimental and Control Groups Are