Question 1
By the time a person reaches the age of 6, that person's brain has reached _____ of its full adult size.
◦ less than 50%
◦ about 67%
◦ about 80%
◦ 95% or more
Question 2
Changes in which part of the brain are most closely associated with the advancement in problem-solving abilities that accompanies the development from childhood into adolescence?
◦ prefrontal cortex
◦ thalamus
◦ pituitary gland
◦ hypothalamus