At the Beginning of the Semester, the Humanities Instructor Explains

Multiple Choice

At the beginning of the semester, the humanities instructor explains that there will be ten pop quizzes over the semester, so students are strongly encouraged to keep up with their reading and attend every class. The humanities instructor is most likely using a _____ schedule of reinforcement to encourage studying and class attendance.

A) variable-ratio
B) fixed-interval
C) fixed-ratio
D) variable-interval