To increase his chances of getting the extra points, Steve consistently turns in the homework. Steve is reinforced on a variable ratio schedule.
Step-by-step explanation:
The strengthening timetable where the response is having capability to strengthen after an unpredictable number of answers in operant conditioning is assumed as a variable-ratio timetable. Such scheduling generates a consistent, high response level. Gambling and lottery games are quite good instances of a variable-ratio plan based incentive. Here Steve is trying to manage his homework by reinforcing variable ratio timetable to earn more credits, because he get return to his schedule without any distraction to perform his work more efficiently.