At the beginning of the semester, the humanities instructor explains that there will be ten surprise quizzes over the semester, so students are strongly encouraged to keep up with their reading and to attend every class. The humanities instructor is using a _____ schedule of reinforcement to encourage studying and class attendance.
A) variable-ratio
B) fixed-interval
C) fixed-ratio
D) variable-interval

Question

Quizplus · Accepted Answer

A variable-interval schedule of reinforcement provides reinforcement at unpredictable time intervals, which in this case are the surprise quizzes. This encourages consistent behavior, such as regular studying and class attendance.

At the Beginning of the Semester, the Humanities Instructor Explains