Studies of children without language, such as Psammeifhus's study, Goldin-Meadow's studies of homesigning children, and the Wild Boy from Aveyron, provide:
A. examples of classic and widespread practices.
B. ways to address questions related to the evolutionary and historical origins of language.
C. evidence about the roles of input and the child's biological capacities in acquiring language.
D. a background into society's efforts to keep some children without language.
Question 2
Language development research primarily focuses on:
A. questions regarding normal language development in most cases
B. making sure that children learn to speak correctly.
C. facilitated communication strategies for learners who have disabilities
D. education and anthropology.
When parents actively support higher education, their children achieve more in their future careers.
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