Institutional Settings, Such as Mental Hospitals, Halfway Houses, Schools for the Intellectually

Institutional settings, such as mental hospitals, halfway houses, schools for the intellectually disabled, programs for delinquents, and ordinary classrooms, make use of reinforcement, in the form of symbolic rewards that can be exchanged for real rewards. These symbolic rewards are called

A) tokens.
B) reinforcement operants.
C) conditioned stimuli.
D) stimulus controls.