Answer:
Variable interval schedule.
Explanation:
The reinforcement schedule involves the different rules by which the particular behavior is reinforced. The schedule might gives the positive as well as negative result.
The variable interval schedule may be defined as a type of reinforcement schedule that requires time to give a specific response. The time might also vary in this schedule. Here, the quizzes might vary with time as well and illustrates the example of variable interval schedule.
Thus, the answer is variable interval schedule.
