The amount of change necessary in a given stimulus to produce "a just noticeable difference" is a constant proportion of the original stimulus.This defines
A)perceptual constancy.
B)perceptual set.
C)Weber's Law.
D)James' Law.

Question

Quizplus · Accepted Answer

Weber's Law states that the amount of change required in a stimulus to produce a just noticeable difference is a constant proportion of the original stimulus. This is also known as the Weber-Fechner law.

The Amount of Change Necessary in a Given Stimulus to Produce