Chimpanzees given tokens for performing tricks were able to put the tokens in vending machines to get grapes. The tokens acted as

Chimpanzees given tokens for performing tricks were able to put the tokens in vending machines to get grapes. The tokens acted as






A) Primary Reinforcers
B) Classical Conditioning
C) Secondary Reinforcers
D) Negative Reinforcers
E) Unconditioned Reinforcers






Answer: C


AP Psychology

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