Most adolescent-adult transition research has focused on adjustment to the __________

Influential factors in the shaping of personality __________

a. include genetics, parents, peers, and culture b. are almost exclusively genetic c. are almost exclusively from the environment d. occur mainly in the first six months of life

Based on the fact that stimulant medications have been used effectively to treat ADHD, it is believed that the disorder may be caused by ____

a. inadequate levels of acetylcholine in the central nervous system b. an excess of serotonin in the central nervous system c. an excess of norepinephrine in the central nervous system d. inadequate neurotransmitters that affect signalflow to and from the frontal lobes