Dr. Ewing measured individual differences in a large sample of individuals using intelligence testing. If performances at each age level formed a normal distribution, the results were probably __________-shaped
A) U
B) L
C) bell
D) star
C
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Which of the following do Territo and Vetter offer as a factor which might explain the high rates of suicide as a result of stress among police officers?
a. the use availability and familiarity with firearms b. the psychological repercussions to constantly being exposed to potential death c. long and irregular working hours which do not promote strong friendships and which strain family ties d. all of the above
The heritability coefficient of extraversion is approximately .5, which means that:
A) a child psychologist can predict with 50% accuracy a client's extraversion level if she knows the extraversion levels of the child's parents. B) children inherit 50% of the tendencies toward extraversion or introversion from their mother, and 50% from their father. C) in any given child, half of extraversion is caused by genetic factors and half is caused by the environment. D) in a large group of children, 50% of the variability in extraversion scores would be due to genetic factors.
In amniocentesis and chorionic villus sampling, the extracted samples are
a. tested for their biochemical composition and chromosomal makeup. b. used to determine the rate of fetal growth. c. tested for rubella, AIDS, and other known teratogenic diseases. d. tested for all teratogens.
Cochlear implants will work best for the adult deaf person who ______.
A. was born deaf B. learned sign language or reads lips well C. learned language before becoming deaf D. is deaf in both ears