According to surveys conducted in the U.S., almost ________ of people 65 years old and older rate their health as good, very good, or excellent

The difference threshold is defined as the degree of change in a stimulus level that is required in order for a person to detect a change __________ of the time

a. 25 percent b. 50 percent c. 75 percent d. 90 percent e. 100 percent

Which part of the brain experiences the greatest growth between the ages of 3 and 6 years?

a. the temporal lobes b. the parietal lobes c. the frontal lobes d. the occipital lobes