Nationwide, the number of children prescribed stimulant medications increased by ________ percent in the past two decades.
A. 50 to 100
B. 75 to 150
C. 100 to 200
D. 200 to 300
Answer: D
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What are the main features of attention-deficit/hyperactivity disorder (ADHD)?
a) Panic attacks, avoidance behavior, and inattentiveness b) Aggression, alcohol abuse, and hyperactivity c) Indecisiveness, panic attacks, and unconsciousness d) Hyperactivity, impulsivity, and inattentiveness
The maternal age range of peak fertility and peak newborn survival has always been 16–24 years
Indicate whether this statement is true or false.
A researcher implants an electrode in a rat's brain, and then wires the electrode so that it stimulates a specific brain region every time the rat presses a lever
The rat finds the stimulation so rewarding that it does nothing but press the lever all day. Which of the following brain regions does the electrode most likely stimulate? A) nucleus accumbens B) amygdala C) cerebellum D) thalamus
Which of the following is an example of a negative correlation?
A. Higher trait anxiety is associated with more hours spent studying. B. Lower trait anxiety is associated with fewer hours spent studying. C. Higher trait anxiety is associated with fewer hours spent studying. D. Trait anxiety is not associated with hours spent studying.