Lindsay finds herself often thinking about the possibility of getting an infection from germs in her dorm room, and so she is constantly washing her hands to the point where her skin is red and sore. Lindsay may be suffering from __________ disorder, and her persistent thoughts are known as __________.

Which part of the brain is responsible for executive processes?

a. brain stem b. hippocampus c. prefrontal cortex d. cerebellum

Tests of infant intelligence do not generally predict later behavior because

a. individual differences in ability are too large in infants. b. infant tests are not reliable. c. infant tests tap different abilities than do later tests. d. infant tests have not been standardized like later tests have been.