Investigations of the causes of ADHD have found that environmental toxins, such as food additives and lead:
a) Do not explain more than a small percentage of cases.
b) Are usually the cause of the disorder in those children with an organic basis to their ADHD.
c) Are more likely to cause attentional problems without hyperactivity, but not in those children with both attentional problems and hyperactivity.
d) Cause subtle attentional problems, but not to the degree of ADHD.
a
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Which of the following family factors contributes to juvenile delinquency?
a. Lax and ineffective discipline b. Low levels of family conflict c. Authoritative parenting d. Single-parent homes
Four-year-old Jackie often mutters to herself as she builds things with her blocks. Her utterances (e.g., "the blue one goes first") seem to be a running dialogue of her actions that are guiding her behavior. Vygotsky referred to this activity as _____ speech
a. private b. social c. egocentric d. telegraphic
If a researcher reported for a single-sample t test that t(17) = 2.90, p< 0.02, how many participants were there in the study?
a. 18 b. 20 c. 10 d. 9
Schachter and Singer's theory emphasizes the ____ component of emotion
a. behavioral c. cognitive b. physiological d. active