A Rat Placed in a Chamber with Two Response Levers

Multiple Choice

A rat placed in a chamber with two response levers, each operating on a variable-interval schedule and with one that pays off approximately 5 reinforcers per minute and a second that pays off approximately 10 reinforcers per minute, will most likely distribute its behavior as:

A) 100% of responses to the lever that gives 10 reinforcers per minute
B) 75% of responses to the lever that gives 10 reinforcers per minute
C) 67% of responses to the lever that gives 10 reinforcers
D) 50% of responses to the lever that gives 10 reinforcers per minute