In their comprehensive study of language development in professional, working-class, and low-income families, Hart and Risley (1995) found that:
a. children from lower-income families have bigger expressive vocabularies IF their family speaks more than one language at home.
b. children with higher IQs had bigger vocabularies than children with lower IQs, regardless of family socioeconomic status.
c. the greatest predictor of a child's vocabulary at age 3 is the socioeconomic status of the child's family.
d. vocabulary growth is most strongly associated with exposure to adult language during the infant and toddler years.
Question 2
Although preschoolers develop domain-specific knowledge at different rates, research suggests that when children are 3-1/2 to 4 years old, they CANNOT yet:
a. compare objects based on length or weight.
b. create patterns of numbers or objects without assistance.
c. differentiate between living and nonliving things.
d. see how their family members are related.
first day of my chemistry class.. this is what the teacher had to say
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