In Skinner's experiment with a rat, the _____ becomes the reinforcer for the behavior of depressing the bar
a. electric shock
c. Skinner Box
b. food
d. experimenter
ANS: B
FEEDBACK: The rat's behavior (pressing the lever) has operated on the environment and, as a result, has changed it. The environment now includes a food pellet. The food is a reinforcer for the behavior of depressing the bar.
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