If the JND for sweetness is 1/20 and the stimulus concentration is 100 units, how much sweeter must it be made for a participant to just detect the change
A) 5 units
B) 10 units
C) 15 units
D) 20 units

Question

Quizplus · Accepted Answer

The Just Noticeable Difference (JND) for sweetness is 1/20, meaning a change must be 1/20th of the original stimulus for it to be detectable. For a stimulus of 100 units, this equates to 100 * (1/20) = 5 units.

If the JND for Sweetness Is 1/20 and the Stimulus