Let's say that you are testing an individual's ability to discriminate tones. When the test stimulus is set at 200 Hz, the person reports a JND at 210 Hz. If I change the test frequency, the value of a JND becomes 50 Hz. What is the new test frequency?

Question

Quizplus · Accepted Answer

The Just Noticeable Difference (JND) is proportional to the frequency of the test tone. Initially, the JND is 10 Hz at 200 Hz, which is 5% of the test frequency. If the JND becomes 50 Hz, the new test frequency must be 1000 Hz, as 50 Hz is 5% of 1000 Hz.

Let's Say That You Are Testing an Individual's Ability to Discriminate