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Cao, Yi; Chen, Jianshen; Zhang, Mo; Li, Chen – ETS Research Report Series, 2020
Scenario-based writing assessment has two salient characteristics by design: a lead-in/essay scaffolding structure and a unified scenario/topic throughout. In this study, we examine whether the scenario-based assessment design would impact students' essay scores compared to its alternative conditions, which intentionally broke the scaffolding…
Descriptors: Writing Processes, Vignettes, Writing Evaluation, Regression (Statistics)
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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