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Standardized Effect Size for Single-Case Research/Ushahidi
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Standardized Effect Size for Single-Case Research

A standardized effect size for single-case research expresses the difference between treatment and baseline phases in standard-deviation units so that it can be placed on the same scale as the familiar between-groups Cohen's d and combined across studies in a meta-analysis. The design-comparable estimator of Hedges, Pustejovsky, and Shadish (2012) explicitly models within-case and between-case variation and applies a small-sample correction, addressing the long-standing problem that nonoverlap indices and naive single-case d statistics are not comparable to the effect sizes used in group-design research.

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Standardized Mean-Difference Effect Sizes for Single-Case Designs
Rekodi ya mbinu ya kiajenda · process-pipeline / social-work
  • Hedges, L. V., Pustejovsky, J. E., & Shadish, W. R. (2012). A standardized mean difference effect size for single case designs. Research Synthesis Methods, 3(3), 224–239. · DOI 10.1002/jrsm.1052
  • Shadish, W. R., Hedges, L. V., & Pustejovsky, J. E. (2014). Analysis and meta-analysis of single-case designs with a standardized mean difference statistic: A primer and applications. Journal of School Psychology, 52(2), 123–147. · DOI 10.1016/j.jsp.2013.11.005
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Same method familyNonoverlap of All Pairsmachine-suggested · Relational suggestion, not evidence.Same method familySingle-System Designmachine-suggested · Relational suggestion, not evidence.Same method familyTau-Umachine-suggested · Relational suggestion, not evidence.

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