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Chen, Jianshen; Keller, Bryan – Journal of Research on Educational Effectiveness, 2019
Despite the overwhelming focus on the overall average treatment effect in the methodological and statistical literature, in many cases the efficacy of an educational program or intervention might vary based on unit background characteristics. The identification of subgroups for which an educational intervention is particularly effective or, on the…
Descriptors: Heterogeneous Grouping, Observation, Longitudinal Studies, Children