Vocabulary size revisited: the link between vocabulary size and academic achievement

  title={Vocabulary size revisited: the link between vocabulary size and academic achievement},
  author={James Milton and Jeanine Treffers-Daller},
Abstract Many researchers have tried to assess the number of words adults know. A general conclusion which emerges from such studies is that vocabularies of English monolingual adults are very large with considerable variation. This variation is important given that the vocabulary size of schoolchildren in the early years of school is thought to materially affect subsequent educational attainment. The data is difficult to interpret, however, because of the different methodologies which… 

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