The principle that the just noticeable difference of any given sense is a constant fraction or proportion of the stimulus being judged is called __________
A) the opponent-process principle.
B) the doctrine of specific nerve energies.
C) the phi phenomenon.
D) Weber's law.

Question

Quizplus · Accepted Answer

Weber's law states that the just noticeable difference of a stimulus is proportional to the magnitude of the original stimulus. This means that the difference needed to notice a change in a stimulus (such as brightness or weight) will be larger for larger stimuli and smaller for smaller stimuli.

The Principle That the Just Noticeable Difference of Any Given