Variable interval schedule (VI)
A basic schedule of intermittent reinforcement in which a variable amount of time must elapse before a single correct response produces reinforcement.
B. Concepts and Principles
Variable ratio schedule (VR)
A basic schedule of intermittent reinforcement in which a variable number of correct responses must be emitted for reinforcement to be delivered.
Verbal behavior
An application of applied behavior analysis that approaches learning language in a way that connects vocal and non-vocal language with its function.