Token economy is used in the treatment of

Token economy: It is a form of behavior modification designed to increase desirable behavior and decrease undesirable behavior with the use of tokens. Individuals receive tokens immediately after displaying desirable behavior. The tokens are collected and later exchanged for a meaningful object or privilege. The primary goal of a token economy is to increase desirable behavior and decrease undesirable behavior. Often token economies are used in institutional settings (such as psychiatric hospitals or correctional facilities) to manage the behavior of individuals who may be aggressive or unpredictable.