The approach of ____ involves the administration of an extensive test battery that includes the Purdue pegboard in order to learn as much about an individual's traits as possible

Which of the following statements is the most accurate regarding the number of brain cells a person has?

a. You are born with almost all of the brain cells you are ever going to have. b. The brain is only 10% developed at birth, which is why a baby's head grows so much faster than the rest of his body. c. The brain is only 50% developed at birth, which is why there is extra space in the child's skull to allow room for growth. d. A newborn actually has no fully developed nerve cells in its brain, and that development starts at the moment the child is born.

Hearing loss, which affects some ____________ of the school-age population, is not simply a matter of not hearing enough. Rather, auditory problems can vary along a number of dimensions

a. 1% to 2% c. 5% to 6% b. 3% to 4% d. 7% to 8%