When Brett was only six years old,his older sister hid in his closet,then unexpectedly jumped out and scared him when he came into his dark bedroom.As an adult,Brett is still terrified of the dark.Based on principles of classical conditioning,Brett's current fear of the dark is

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Quizplus · Accepted Answer

Brett's fear of the dark is a result of classical conditioning, where the unconditioned stimulus (his sister) led to an unconditioned response (fear) which then became associated with the conditioned stimulus (darkness) and resulted in a conditioned response (fear of the dark).

When Brett Was Only Six Years Old,his Older Sister Hid