John’s toaster is malfunctioning. Sometimes his toast is ready in ten seconds. Sometimes he must wait thirty seconds. At times, it can even take several minutes before the toast is done. The toaster has John on a ________ schedule of reinforcement.
A. fixed ratio
B. fixed interval
C. variable ratio
D. variable interval
Answer:D
John’s toaster is malfunctioning. Sometimes his toast is ready in ten seconds. Sometimes he must wait thirty seconds. At times, it can even take several minutes before the toast is done. The toaster has John on a ________ schedule of reinforcement.
A. fixed ratio B. fixed interval C. variable ratio D. variable interval