One difficulty in searching for variables that might predict consistency of behavior is that
A) it is hard for researchers to think of variables that would predict differences in consistency.
B) such research is too time-consuming to conduct.
C) only one variable seems to predict consistency.
D) the effects of such variables are subtle and are sometimes difficult to detect.

Question

Quizplus · Accepted Answer

The difficulty in searching for variables that might predict consistency of behavior is primarily due to the subtlety of these effects, which can make them hard to detect.

One Difficulty in Searching for Variables That Might Predict Consistency