The most common of the identified chromosomal causes of Down syndrome is:
A) trisomy 21.
B) mosaicism.
C) translocation.
D) PKU.
Answer: A) trisomy 21.
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In the early 1980s, public opinion turned against the use of the insanity defense when
A. Ted Kaczynski was found not guilty by reason of insanity. B. Jeffry Dahmer was found not guilty by reason of insanity. C. John Hinkley was found not guilty by reason of insanity. D. None of these are correct
Which of the following is the best example of an explicit social norm?
A. Make eye contact during conversation. B. Don't steal from others. C. Don't talk to yourself out loud. D. Give others room to walk past you on the sidewalk.
Larger groups that are composed of individuals who share particular characteristics but who may not interact with one another are called
a) cliques. b) crowds. c) peers. d) cohorts.
Which statement about influences on executive function is true?
A. Heredity influences executive function, but environmental factors do not. B. Environmental factors influence executive function, but heredity does not. C. In both typically and atypically developing children, heredity combines with environmental factors to influence executive function. D. In typically developing children, the influence of heredity on executive function is greater than that of environmental factors, but in atypically developing children, this relationship is reversed.