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Citkowicz, Martyna; Polanin, Joshua R. – Society for Research on Educational Effectiveness, 2014
Meta-analyses are syntheses of effect-size estimates obtained from a collection of studies to summarize a particular field or topic (Hedges, 1992; Lipsey & Wilson, 2001). These reviews are used to integrate knowledge that can inform both scientific inquiry and public policy, therefore it is important to ensure that the estimates of the effect…
Descriptors: Meta Analysis, Accountability, Cluster Grouping, Effect Size