Answer:
a token economy
Step-by-step explanation:
In a nutshell, we can say that a token economy is a system that seeks to reinforce the execution of beneficial behavior for an individual. In this type of reinforcement, each time an individual behaves in the desired and correct way, he receives a card, or any other object, which will serve as a token for him to exchange for a reward, after accumulating a specific number of tokens. An example of this is seen in the question above, where Simon's caregivers wanted him to interact more with people. So, whenever he interacts with someone, he gets a red card that he can accumulate to exchange for a prize.