Examlex
Multiply the following numbers to obtain the correct answer: 1,234 pounds x 17
Weber's Constant
A principle in psychophysics that quantifies the smallest change in a stimulus that can be detected, stating that this change is a constant proportion of the original stimulus intensity.
Threshold
The point at which a stimulus is strong enough to be detected or to cause a response.
Difference Threshold
The smallest detectable difference between two stimuli or the minimum change in a stimulus that can be correctly perceived as differing from a reference stimulus.
Just Noticeable Difference
The minimum difference in stimulus intensity that a specific sense (like sight, hearing, taste, touch, or smell) can detect.
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