Extinction occurs in classical conditioning when the ________ no longer produces the ________
A) CS; US
B) CS; CR
C) US; CR
D) US; UR
Answer: B
Rationale: Extinction is the loss or weakening of a conditioned response (CR) when a conditioned stimulus (CS) and unconditioned stimulus no longer occur together. Extinction is complete when the CS no longer elicits a CR at all.
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Based on cross-cultural research of Piaget's preoperational and concrete operational
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Whenever the value of the standard deviation is positive, then
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