Answer:
The answer is: Extinction.
Explanation:
In operant conditioning, when a conditioned behavior decreases or disappears, it is called extinction. Extinction can be produced by many factors, in Tyler's case, the behavior of going to the cookie jar disappeared because he stopped finding cookies there. According to Skinner, the behavior disappeared because there was no longer a reinforcer of that behavior. In this case, the cookies were the reinforcer that used to follow the discriminative stimulus (the cookie jar), when there were no more cookies Tyler stopped going to the cookie jar, the behavior disappeared.
