A pigeon is confronted with two disks, one green, the other red. The bird receives food on a VI 20" schedule when it pecks the green disk, and on a VI 10" schedule when it pecks the red one. You
Predict that the bird will peck _________.
A) one disk about as often as at the other
B) the green disk almost exclusively
C) the green disk about twice as often as the red disk
D) the red disk about twice as often as the green disk

Question

Quizplus · Accepted Answer

The bird is likely to peck the red disk about twice as often as the green disk because the red disk is on a VI 10" schedule, meaning it provides reinforcement (food) more frequently on average than the green disk, which is on a VI 20" schedule.

A Pigeon Is Confronted with Two Disks, One Green, the Other