Researchers have given children either psychostimulant drugs or placebo for attention-deficit/hyperactivity disorder. They are interested in how the mothers will react to their children. What do they find?
a. Parent behavior seems to be the primary cause of much of a child's hyperactivity.
b. When their children are on medication, mothers are less negative and less controlling.
c. Based on the response of parents, the effects of psychostimulants can be attributed to a placebo effect.
d. Parents do not seem to respond any differently to children when they are on or off psychostimulant medication.
Answer: b.
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