Weber's law states that the change in a stimulus that will be just noticeable is a constant ratio of the original stimulus. This means that if you add or subtract from the stimulus, the change will be noticeable if it is a certain proportion of the original stimulus.

Let's analyze each option:

A. A weightlifter who doesn’t notice a 5-pound difference in weight added in 1-pound increments, but who notices the difference in weight added in one 5-pound increment. This does not contradict Weber's law. The weightlifter's ability to notice the difference depends on the proportion of the change, not the absolute amount of the change.

B. A nonlinear relationship between the intensity of a stimulus and an individual’s ability to detect it. This contradicts Weber's law. According to Weber's law, the relationship between the intensity of a stimulus and an individual's ability to detect it should be linear.

C. The existence of a threshold, above which stimuli are detectable and below which stimuli are not detectable. This does not contradict Weber's law. Weber's law is about the just noticeable difference, not the absolute threshold of detection.

D. Hearing a whisper in a quiet room but not hearing a shout in a noisy room. This does not contradict Weber's law. The ability to detect the whisper or the shout depends on the background noise, which changes the proportion of the change in the stimulus.

So, the answer is B. A nonlinear relationship between the intensity of a stimulus and an individual’s ability to detect it contradicts Weber’s law.

Question

Weber's law states that the change in a stimulus that will be just noticeable is a constant ratio of the original stimulus. This means that if you add or subtract from the stimulus, the change will be noticeable if it is a certain proportion of the original stimulus.

Let's analyze each option:

A. A weightlifter who doesn’t notice a 5-pound difference in weight added in 1-pound increments, but who notices the difference in weight added in one 5-pound increment. This does not contradict Weber's law. The weightlifter's ability to notice the difference depends on the proportion of the change, not the absolute amount of the change.

B. A nonlinear relationship between the intensity of a stimulus and an individual’s ability to detect it. This contradicts Weber's law. According to Weber's law, the relationship between the intensity of a stimulus and an individual's ability to detect it should be linear.

C. The existence of a threshold, above which stimuli are detectable and below which stimuli are not detectable. This does not contradict Weber's law. Weber's law is about the just noticeable difference, not the absolute threshold of detection.

D. Hearing a whisper in a quiet room but not hearing a shout in a noisy room. This does not contradict Weber's law. The ability to detect the whisper or the shout depends on the background noise, which changes the proportion of the change in the stimulus.

So, the answer is B. A nonlinear relationship between the intensity of a stimulus and an individual’s ability to detect it contradicts Weber’s law.

Knowee AI · Accepted Answer

Weber's law states that the change in a stimulus that will be just noticeable is a constant ratio of the original stimulus. This means that if you add or subtract from the stimulus, the change will be noticeable if it is a certain proportion of the original stimulus.

Let's analyze each option:

A. A weightlifter who doesn’t notice a 5-pound difference in weight added in 1-pound increments, but who notices the difference in weight added in one 5-pound increment. This does not contradict Weber's law. The weightlifter's ability to notice the difference depends on the proportion of the change, not the absolute amount of the change.

B. A nonlinear relationship between the intensity of a stimulus and an individual’s ability to detect it. This contradicts Weber's law. According to Weber's law, the relationship between the intensity of a stimulus and an individual's ability to detect it should be linear.

C. The existence of a threshold, above which stimuli are detectable and below which stimuli are not detectable. This does not contradict Weber's law. Weber's law is about the just noticeable difference, not the absolute threshold of detection.

D. Hearing a whisper in a quiet room but not hearing a shout in a noisy room. This does not contradict Weber's law. The ability to detect the whisper or the shout depends on the background noise, which changes the proportion of the change in the stimulus.

So, the answer is B. A nonlinear relationship between the intensity of a stimulus and an individual’s ability to detect it contradicts Weber’s law.

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