An audiologist is testing your hearing. She instructs you to raise your hand whenever you hear atone through headphones. Some of the time you hear tones; some are loud, some are of mediumvolume, and some are very quiet to you. Some of the time you do not hear anything. After the test, the audiologist tells you that her test is designed so that some tones will be so quiet that you canonly hear them about half of the time. She tells you that this is how she establishes the lowestintensity that you can hear. This smallest intensity of a stimulus that you can detect 50 percent of:
the time isWeber's law.
the sensory threshold.
the difference threshold.
the absolute threshold.

The absolute threshold

Explanation:

In neuroscience and psychology, the absolute threshold refers to the lowest amount/intensity of an stimulus that a person can detect approximately 50% of the time. In other words, it is the lowest intensity of a visual, hearing, touch stimulus, that a person is able to detect.

In this example, you go to a hearing test and you are supposed to raise your hand whenever you hear a tone. Once the test is finished, the audiologist tells you that the test is designed so that some tones are so quiet you cannot hear them half of the time. In other words, since you can only detect them approximately 50% of the time, these tones would be in the absolute threshold since they are so low you can only detect them 50% percent of the time

the answer is d.index

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