Which problem is solved by establishing the magazine sound in the operant chamber as a secondary reinforcer?
a. Locating the food hopper
b. Providing a reinforcer immediately
c. Establishing food as a reinforcer
d. Strengthening the bar-food association
b. Providing a reinforcer immediately
Answer feedback: Reinforcement becomes less effective as it is delayed. The immediacy of the sound of the magazine following a reinforced bar press means that the sound can become an effective secondary reinforcer as a result of repeated pairing with the presence of the food pellet in the hopper. The magazine is located behind the back wall and is not visible. Thus the sound of the magazine does not signal the physical location of the hopper. Nor does it establish food as a reinforcer. A separate procedure, such as food deprivation, is required. Finally, the Sniffy program does not include a bar-food association.
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