Medical intervention clearly improves a patient's health only about ___ of the time
a. 10%
b. 30%
c. 50%
d. 80%
e. 90%
a
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After Archimedes suddenly realized the solution to his problem of whether the king had been cheated by the goldsmith, he tested this solution by placing the amount of gold given to the goldsmith in a tub of water, marking the water level, and removing the gold. He then placed the crown in the water. If the goldsmith had cheated the king by using cheaper metals, the water level would be different than the water level marked for the pure gold. At this point, Archimedes was in which stage of creative thought?
a. preparation b. incubation c. illumination d. verification
Which of the following has a sharp growth peak at about age 10?
a. the reproductive system c. height b. the brain d. the lymphoid system
There is growing evidence that genetic factors are involved in ______
a. virtually no mental disorders b. only a few mild psychological problems c. only a couple of severe mental disorders, and virtually no mild psychological problems d. a wide variety of mild to severe psychological problems
Show four-year-old Enrique five toy horses and three toy cows. Then ask, "Are there more horses or more animals?" If Enrique responds, "More horses," he is probably in the
A) sensorimotor stage. B) preoperational stage. C) formal operations stage. D) concrete operations stage.