Abraham Lincoln suffered through periods of profound depression throughout his life. What do some historians believe his mood disorder can be traced to?
A. his poverty-stricken upbringing on the Western frontier
B. his father losing his property due to faulty property titles
C. the death of his mother when he was nine years old
D. insomnia
Answer: C
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When we use heterogeneous subsamples of data, such as older and younger subjects, the resulting correlation between intelligence and education could
a. tell you more about the relationship between Age and Education than between Intelligence and Education. b. be very misleading. c. represent the relationship between Education and Intelligence accurately. d. all of the above
Graduate student Charisse Goldberg conducted operant conditioning trials with a laboratory rat. Goldberg trained the animal to press a lever to earn a food pellet. The rat successfully learned to press the lever. In the language of operant conditioning, what is the animal's learned response called?
a. a higher-order conditioned response b. a vicariously learned response c. a reconditioned response d. a latent response e. an operant response