Drug therapy to treat the symptoms of Alzheimer's disease focuses on the loss of the neurotransmitter __________
a) serotonin
b) dopamine
c) acetylcholine
d) ribonucleic acid
Answer: c
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In Clara's honors research project on the effect of video games on aggression in children, the measure of aggression was the number of times physical contact occurred among the children being observed. Clara's measure of aggression is an example of
a. the operational definition of a variable. c. the reliability of a measure. b. the validity of a measure. d. a control variable.
In 1784, a commission chaired by Benjamin Franklin concluded that Mesmer's patients' reactions were due to ________ rather than ________
a) trickery, magnetism b) magnetism, trickery c) magnetism, imagination d) imagination, magnetism
During the early years of life, outbursts of crying and anger are fairly frequent. By middle childhood these behaviors ____
decline substantially || decline slightly || increase slightly || increase substantially || || ||
At about what age do children begin to prefer rule-governed or formal games?
A) By age two B) By age three or four C) By age five or six D) From nine to twelve years of age