Answer:
UCS: Electrical shock
UCR: Crying
CS: Toy
CR: Crying
Step-by-step explanation:
As we can see in the example, the child experiences electrical shock when he plays with his toy, and accidentally sticks a part of the toy to the electrical outlet. Because the boy perceives the toy to be the cause of the electrical shock, which in turn makes him cry; the toy, which was originally a neutral stimulus, becomes a conditioned stimulus because of the association with the electrical shock.
Although it is tempting to say that the UCR/CR is fear, remember that this is a form of classical conditioning, which is part of the behaviorism school of thought. Thus, responses and stimuli can only be determined by observable behaviors as seen in the subjects; when we are using behaviorism principles, we do not make inferences based on what goes on in the subject's minds - including their feelings.