According to the S-S, S-R and the S-S, S-S models, the CS ________ elicited a CR when it was presented without the US in Stage 3 because ________.
a. should have; the UR had habituated
b. should have; the CS had habituated
c. should not have; the UR had habituated
d. should not have; the CS had habituated
c. should not have; the UR had habituated
Answer feedback: Presenting the low-intensity electric shock by itself repeatedly during Stage 2 should have produced habituation of the UR. According to the two models this should result in little, if any, response to the CS in Stage 3, as both models stipulate the acquisition of an S-S association in Stage 1.
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