Several studies suggest that some toxins and foods may play a role in the
development and evolution of ADHD. Which of the following claims(s) has(have)
not been supported by empirical research?
a. Lead poisoning plays a causal role in ADHD.
b. Sugar increases the severity of ADHD symptoms.
c. In many cases, food additives and preservatives are at the origin of the disorder.
d. The disorder evolves more rapidly when affected children are on an unbalanced
diet.
e. All of the above
E
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Which of the following statements is true of stimulants?
A) They increase aggressive and disruptive behavior. B) They reduce the risk of sleep disorders. C) They increase the activity of the nervous system. D) They reduce self-confidence.
Which prenatal diagnostic method is used after in vitro fertilization but before implantation?
A) chorionic villus sampling B) ultrafast magnetic resonance imaging C) fetal surgery D) preimplantation genetic diagnosis
Wundt's primary research method was training volunteers to use _________________
FIll in the blank with correct word.
Psychologists call the characteristics, emotions, and beliefs people have about themselves
A) self. B) self-regulation. C) conscience. D) perspective taking.