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Early Intervention Programs
  *74 studies
  *215 effect sizes
  *Overall ES = .68
  *ES = .40 in higher-quality studies
  *Casto & Mastropieri, 1986
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Created Mon, 19 Apr, 1999 5:24 AM
Authors' names: John Wills Lloyd, Steven R. Forness, & Kenneth A. Kavale

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