In 2012, the number of teen pregnancies __________
a) rose 5 percent over the previous year
b) was about the same as it was 2 decades ago
c) dropped to its lowest level in 7 decades
d) dropped slightly from 2002 levels
Answer: c
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Jet lag and changes in shift work would most likely precipitate which sleep disturbance?
a. narcolepsy b. sleep apnea c. sleep drunkenness d. sleep-wake schedule disorder
It has been reported that average scores on national exams, such as the Scholastic Aptitude Test (SAT), have declined in recent years. Researchers interested in exploring this intensively interview students who have just taken the exam,
those who will take it next year, and those who took it five years ago. This method is ________. a. longitudinal b. experimental c. biographical d. cross-sectional
It has been suggested that, because both are very necessary, hereditary accounts for ______ and environment accounts for ______ of intelligence.
A. 50%; 50% B. 45%; 55% C. 100%; 100% D. 55%; 45%
Which of the following is NOT an example of a diathesis?
a) Chronic feelings of hopelessness, often found in people with depression. b) The ability to be hypnotized often, seen in people with dissociative identity disorder. c) Intense fear of becoming fat often, found in people with eating disorders. d) Delusions often found in people with schizophrenia.