Table 3Estimates of sampling variance for the SMD ES in the one-group design with repeated-measures

No.MetricEquation
13.Raw-score metric (Becker, 1988)19 varone-g(db)=(2(1-rpre,post)n)(n-1n-3)(1+n2(1-rPre,Post)db2)-db2[c(100-1)]2
14.Change-score metric (Gibbons et al., 1993)23 varone-g(dg)=(1n)(n-1n-3)(1+ndg2)-dg2[c(n-1)]2

Note: “Raw-score” implies having the measures’ variability in the original observations and does not imply the unstandardized mean difference (UMD).

From: Introduction

Cover of Meta-Analytic Statistical Inferences for Continuous Measure Outcomes as a Function of Effect Size Metric and Other Assumptions
Meta-Analytic Statistical Inferences for Continuous Measure Outcomes as a Function of Effect Size Metric and Other Assumptions [Internet].
Johnson BT, Huedo-Medina TB.

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