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Educational effects of a vocabulary intervention on preschoolers' word knowledge and conceptual development: A cluster-randomized trial

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Description:
An examination of the effects of the World of Words vocabulary program on children's word, conceptual, category, and property knowledge, based data from 3- and 4-year-old children in 28 Head Start classrooms in 12 schools
Resource Type:
Reports & Papers
Country:
United States

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