Mary Takes a Course in Which She Is Tested Every

Multiple Choice

Mary takes a course in which she is tested every two weeks.Her studying falls off right after a test,followed by a gradual increase to a rapid rate of studying as the next test approaches.Her studying conforms to the typical pattern of responding maintained on

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