Amber asked her roommate to turn down the radio because she was trying to study. Her roommate had increased the volume from a volume level of 14 to 15. This was just enough for Amber to detect the increase and subsequent decrease. Amber's detection of the increase and decrease of volume is an example of .

Amber's detection of the increase and decrease of volume is an example of difference threshold.

Explanation:

The difference threshold is the minimum amount of change needed in a stimulus in order to be perceived as a change. It is a small amount but enough to be a noticeable difference.

This is an example of a difference threshold since it is barely any amount but it was enough for Amber to notice the difference in her roommate's music volume.