Chapter 8: Problem 3

Weber discovered that for a difference between two stimuli to be perceptible, the stimuli must differ by at least a ______________ proportion.

Short Answer

Expert verified

Constant proportion.

Step by step solution

Understanding Weber's Law

Weber's Law, named after the psychologist Ernst Heinrich Weber, refers to the principle in experimental psychology which asserts that the change in a stimulus that will be just noticeable is a constant ratio of the original stimulus. It describes the relation between the actual change in a physical stimulus and the perceived change. This ratio is what the question refers to.

Identifying the Correct Proportion

According to Weber's Law, for a difference between two stimuli to be perceptible, the stimuli must differ by at least a constant proportion. That means, the change in the stimulus should be relative to the initial stimulus size. The actual ratio differs across the types of stimuli (like weight, brightness, etc.).

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Weber discovered that for a difference between two stimuli to be perceptible, the stimuli must differ by at least a ______________ proportion.

Short Answer

Step by step solution

Understanding Weber's Law

Identifying the Correct Proportion

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