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Nancy K. Scammacca; Anna-Mária Fall; Greg Roberts – Journal of Research on Educational Effectiveness, 2015
Effect sizes are commonly reported for the results of educational interventions. However, researchers struggle with interpreting their magnitude in a way that transcends generic guidelines. Effect sizes can be interpreted in a meaningful context by benchmarking them against typical growth for students in the normative distribution. Such benchmarks…
Descriptors: Effect Size, Achievement Gains, Statistical Distributions, Low Achievement
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Swanson, Elizabeth; Wanzek, Jeanne; Vaughn, Sharon; Roberts, Greg; Fall, Ana-Mari – Exceptional Children, 2015
This study aimed to determine the efficacy of a content knowledge and reading comprehension treatment implemented by eighth-grade general education social studies teachers among students with disabilities included in the classes. Data on students with disabilities across 2 years of study were combined for the analysis presented here. Students in…
Descriptors: Disabilities, Middle School Students, Social Studies, Knowledge Level
Nancy K. Scammacca; Anna-Mária Fall; Greg Roberts – Grantee Submission, 2015
Effect sizes are commonly reported for the results of educational interventions. However, researchers struggle with interpreting their magnitude in a way that transcends generic guidelines. Effect sizes can be interpreted in a meaningful context by benchmarking them against typical growth for students in the normative distribution. Such benchmarks…
Descriptors: Reading Tests, Achievement Tests, Standardized Tests, Elementary Secondary Education