Psychologists who study children's cognitive development in a range of environments have found that ____.
a. the cognitive skills of disadvantaged children can be improved by providing the children with extra lessons, stimulating materials, and educational contact with sensitive adults
b. preschool programs have robust and enduring effects
c. the environment does not influence cognitive development beyond the first two years of life
d. once intellectual development has been impaired, there is no hope of reversing the damage
Question 2
Korean and Chinese children can do arithmetic with three-digit numbers with greater skill than American children. According to research, what is one of the most important factors explaining this differences ____.
a. cultural influences on Piaget's sensorimotor stage
b. cultural influences on Vygotsky's social scripts
c. Asian language labels for the numbers eleven to nineteen
d. specific genetic markers in both groups of children
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