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Psychophysical Distinctions: Investigating “Just Noticeable Differences”

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Psychophysical Distinctions:  Investigating “Just Noticeable Differences”

A "Just Noticeable Difference," or JND, is the smallest detectable difference between a starting and secondary level of a particular sensory stimulus--in other words, the difference between a one dollar bill in your hand and two dollar bills in your hand. In this experiment, you will determine the JND between the weights of bags of pennies. The results graphed in comparison to the JND for weight calculated by Ernst Weber, the psychophysicist who first tested and described the JNDs of weights.

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Psychophysical Distinctions: Investigating “Just Noticeable Differences”

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