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  • ANALYSIS OF PRETEST-POSTTEST DESIGNS
    ebook
    ANALYSIS OF PRETEST-POSTTEST DESIGNS
    PETER L. BONATE
    How do you analyze pretest-posttest data? Difference scores? Percent change scores? ANOVA? In medical, psychological, sociological, and educational studies, researchers often design experiments in which they collect baseline (pretest) data prior to randomization. However, they often find it difficult to decide which method of statistical analysis i ...

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