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Raj Chetty; John N. Friedman; Jonah E. Rockoff – National Bureau of Economic Research, 2011
Are teachers' impacts on students' test scores ("value-added") a good measure of their quality? This question has sparked debate largely because of disagreement about (1) whether value-added (VA) provides unbiased estimates of teachers' impacts on student achievement and (2) whether high-VA teachers improve students' long-term outcomes.…
Descriptors: Academic Achievement, Scores, Teacher Effectiveness, Outcomes of Education
August, Diane; Branum-Martin, Lee; Cardenas-Hagan, Elsa; Francis, David – Society for Research on Educational Effectiveness, 2010
The goal of this study was to assess the effectiveness of an intervention--Quality English and Science Teaching (QuEST)--designed to develop the science knowledge and academic language of middle grades English language learners studying science in their second language and their English-proficient classmates. Both English language learners and…
Descriptors: Academic Discourse, Intervention, Vocabulary, Second Language Learning