AP PSYCHOLOGY

Detailed explanation-1: -Because teachers know that pop quizzes encourage students to pay attention regularly and keep up with class work. Pop quizzes work on a variable-interval schedule of reinforcement.

Detailed explanation-2: -When done properly, pop quizzes encourage students to complete their reading on a more frequent basis. This reinforcement schedule is known as a VI schedule.

Detailed explanation-3: -Variable Interval: In variable interval (VI) schedule, the first behavior is reinforced after an average amount of time has passed. Example: You provide Jane praise (“good job”) the first time she says “please” after about every 55, 60 or 65 minutes.

Detailed explanation-4: -the time between reinforcements varies around some average rather than being fixed. For example, a professor who gives surprise quizzes that vary from one every 3 days to one every 3 weeks, averaging one every 2 weeks, is using a variable-interval schedule.