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    Placebo Control Practices in Educational and Psychotherapy Research by Adair, John G.

    Published 1986
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    Microfilm Book
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    Use of the New One Group Posttest Only Design by McNeil, Keith

    Published 1990
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    Strategies for Analyzing Data from Intact Groups by Cross, Lawrence H.

    Published 1977
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    When Control Groups Do Not Exist Program Evaluation without a Net / by Clark, Sheldon B.

    Published 1991
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