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Lei Zhang – Discover Education, 2025
This systematic review presents the first synthesis of the scientific literature on estimating school and teacher/class effects on student academic performance using random-effects (RE) models with three or more levels. The review delves into the theoretical framework underpinning the estimation of educational effects, the associated statistical…
Descriptors: Academic Achievement, Teacher Effectiveness, School Effectiveness, Content Analysis
UNICEF Innocenti - Global Office of Research and Foresight, 2025
One in every 10 children has a disability. These 240 million children, like all others, have hopes and dreams. Yet they also face unique challenges and barriers shaped by ableism and stigma. This report documents UNICEF and its partners' disability evidence generation from 2018 to 2022. It underscores the organization's deep-rooted commitment to…
Descriptors: International Organizations, Children, Evidence, Students with Disabilities
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Steven Glazerman; Larissa Campuzano; Nancy Murray – Evaluation Review, 2025
Randomized experiments involving education interventions are typically implemented as cluster randomized trials, with schools serving as clusters. To design such a study, it is critical to understand the degree to which learning outcomes vary between versus within clusters (schools), specifically the intraclass correlation coefficient. It is also…
Descriptors: Educational Experiments, Foreign Countries, Educational Assessment, Research Design