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Download full textHong, Guanglei; Nomi, Takako – Society for Research on Educational Effectiveness, 2012
This study introduces a new set of weighting procedures for revealing the mediation mechanism in multi-level settings. These methods are illustrated through an investigation of whether the impact of a system-wide policy change on student outcomes is mediated by policy-induced peer composition change. When the policy changed not only…
Descriptors: Mathematics Achievement, Outcomes of Education, Probability, Hypothesis Testing
