Seven-year-old Sangram is not allowed to touch the television remote.Nevertheless,he uses the remote to change the volume from level 15 to 17.His parents,who are in the next room,seem unaware.The next day,Sangram becomes bold and turns the volume from level 15 to 30.His father yells at him,"Stop playing with the remote!" What prevented Sangram's father from noticing the volume change on the previous day?

Question

Quizplus · Accepted Answer

The difference between volume levels 15 and 17 may have been too small to exceed Sangram's father's difference threshold, the minimum amount of difference required to perceive a change in stimuli. Therefore, he did not notice the volume change on the first day. On the second day, when Sangram increased the volume from level 15 to 30, the change was likely large enough to exceed any threshold and his father finally noticed.

Seven-Year-Old Sangram Is Not Allowed to Touch the Television Remote