Effects of Special Education Practices: Class Size Reduction

Class Size

*77 studies

*725 effect sizes

*Overall ES = .31

*More substantial effects at secondary level and in well-controlled studies

*Glass & Smith, 1979

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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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