Biology, 27.09.2019 01:00 ggggggggv24

Ahungry rat in an operant chamber is reinforced with food after pressing a bar only if a light on the chamber wall is on. if the rat learns to press the bar only when the light is on, this would indicate that the light is a(n)

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Ahungry rat in an operant chamber is reinforced with food after pressing a bar only if a light on th...