Final answer:
The practice of a token system in behavioral therapy is informed by operant conditioning. Operant conditioning involves associating voluntary behavior with its consequences, and in this case, tokens are used as positive reinforcement to encourage desired behaviors.
Step-by-step explanation:
The practice of a token system in behavioral therapy is informed by operant conditioning. Operant conditioning is a type of conditioning in which the subject learns to associate voluntary behavior with its consequences.
In this case, the tokens are used as a form of positive reinforcement to encourage desired behaviors.
The tokens can be exchanged for rewards or privileges, reinforcing the behavior and increasing the likelihood of its occurrence.