The grid floor in an operant chamber is electrified.Each time a rat presses a lever,however,the shock is turned off for one minute.The rat quickly learns to press the lever the second that the grid becomes electrified.Lever pressing has been:
A)positively reinforced.
B)negatively reinforced.
C)positively punished.
D)negatively punished.

Question

Quizplus · Accepted Answer

The behavior of lever pressing is being strengthened through the removal of an aversive stimulus (electrified grid) after the behavior (lever pressing) occurs. This is referred to as negative reinforcement. Therefore, choice B is the best answer.

The Grid Floor in an Operant Chamber Is Electrified