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Li, Linlin; Ringstaff, Cathy; Tripathy, Rachel Grimes; Flynn, Kylie; Thomas, Larry – Grantee Submission, 2019
This study evaluated the efficacy of the Word Learning Strategies (WLS) supplementary program to improve elementary students' vocabulary skills and reading comprehension. The study used a multi-site cluster randomized, experimental design, which randomly assigned 92 4th grade classrooms (n=2558 students) from two cohorts to a treatment or control…
Descriptors: Elementary School Students, Vocabulary Development, Learning Strategies, Reading Comprehension
Drummond, Katie V.; Tucker-Bradway, Natalie; Smith, Deeza-Mae; Hubbard, Daniel; Meakin, John; Salinger, Terry – American Institutes for Research, 2020
This i3 scale-up study examined the implementation and effectiveness of a 3-year literacy intervention developed by the Children's Literacy Initiative (CLI). The study was a school-level cluster randomized controlled trial conducted in 55 elementary schools from four states. Implementation results showed a high level of fidelity of intervention…
Descriptors: Literacy Education, Intervention, Program Effectiveness, Program Evaluation