Jacqueline is studying a fetus’s sensitivity to external stimuli by measuring changes in fetal heart rate when various repeated sounds are presented and then followed by a different sound. Jacqueline is using ________
A) imitation
B) extinction
C) habituation and recovery
D) classical conditioning
Answer: C
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Amy always comes home on time when she's out with her friends and never violates the curfew set by her parents. What strengthens this behavior?
a. A positive primary reinforcer. c. A positive reinforcer. b. A primary reinforcer. d. A negative reinforcer.
While sitting in her Jeep at a red traffic light, Lauren heard a loud screech. One second later, a cab smashed into the back of her Jeep. Now when she hears a screeching sound, she feels anxious. In this example, the screech became an effective __________, and her anxiety in response to the sound became the __________
a. CR; CS c. CS; CR b. US; CR d. CS; UR
Three-year-old Junko has physically developed in a normal fashion. Which of the following activities should she be expected to accomplish?
A) pedal a tricycle B) balance on 1 foot for several seconds C) hop 8 to 10 times on 1 foot D) walk a short distance on a balance beam alternating feet
The presence of another sexually transmitted infection (STI) greatly decreases the likelihood that a person exposed to HIV will become infected.
Answer the following statement true (T) or false (F)