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Vaughn, Sharon; Martinez, Leticia R.; Linan-Thompson, Sylvia; Reutebuch, Colleen K.; Carlson, Coleen D.; Francis, David J. – Journal of Research on Educational Effectiveness, 2009
Two experimental studies to improve vocabulary knowledge and comprehension were conducted in 7th-grade social studies classes with English language learners (ELLs). Two different nonoverlapping samples of classes of 7th-grade students (N = 381 and N = 507) were randomly assigned at the classroom (i.e., section) level to a social studies…
Descriptors: Vocabulary, Second Language Learning, Vocabulary Development, Social Studies
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Browder, Diane M.; Ahlgrim-Delzell, Lynn; Courtade, Ginevra; Gibbs, Susan L.; Flowers, Claudia – Exceptional Children, 2008
This study evaluated the impact of a curriculum called the Early Literacy Skills Builder on the language and early literacy skills of students with significant developmental disabilities. Students in the control group received the ongoing sight word and picture instruction prescribed by their individualized education programs. Results indicate…
Descriptors: Control Groups, Experimental Curriculum, Research Needs, Individualized Education Programs