You Notice That the Pigeon in the Laboratory You Just

Multiple Choice

You notice that the pigeon in the laboratory you just entered has a particular way of pecking at the key in its cage. The pigeon seems to increase its rate of pecking towards the end of a two minute period, food is made available, and then pecking slows until the end of the next two minutes.You surmise that the pigeon is on a

A) fixed ratio schedule.
B) variable ratio schedule.
C) fixed interval schedule.
D) variable interval schedule.