The age at which stuttering tends to recede is around ____.
a. 2 years
b. 5 years
c. 9 years
d. 10 years
Question 2
Studies investigating the causes of communication disorders suggest that ____.
a. there is no genetic basis for language problems
b. left-handed people are more likely to develop language impairments
c. communication problems are often tied to poor parental efforts to stimulate language development
d. there is an interaction of genetic influences, slowness of brain maturation, and possible minor brain lesions
To examine a child’s ear, the pinna should be pulled back and up for children over 3 years; the pinn
Earth’s history spans 4.5 billion years. Geologists and paleontologists have pieced together the his
(a) The site of Zhoukoudian outside of Beijing, China, spans several hundred thousand years and (b)
Results from sequential study of two cohorts tested at three ages and at three different points in t
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