One study of children's lexical knowledge at school year ages indicates:
A) that there is a greater increase in vocabulary development between third and fifth grade than between first and third grade.
B) that there is little difference in the rate of vocabulary development across the grades.
C) children in fifth grade reach the maximum growth rate of vocabulary development.
D) vocabulary development is dependent on direct instruction in the schools.

Question

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The study indicates that there is a greater increase in vocabulary development between third and fifth grade than between first and third grade, suggesting that there is not a consistent rate of vocabulary development across all grades.

One Study of Children's Lexical Knowledge at School Year Ages