VARIABLE INTERVAL SCHEDULE OF REINFORCEMENTProbably, the situation implies the answer stated above which is the "Variable Interval Schedule of Reinforcement". In operant conditioning, a
variable-interval schedule is a schedule of reinforcement where a response is rewarded after an unpredictable amount of time has passed. This schedule produces a slow, steady rate of response.
As you probably recall, operant conditioning can either strengthen or weaken behaviors through the use of reinforcement and punishment.