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Graham, Steve; McKeown, Debra; Kiuhara, Sharlene; Harris, Karen R. – Journal of Educational Psychology, 2012
In an effort to identify effective instructional practices for teaching writing to elementary grade students, we conducted a meta-analysis of the writing intervention literature, focusing our efforts on true and quasi-experiments. We located 115 documents that included the statistics for computing an effect size (ES). We calculated an average…
Descriptors: Intervention, Teaching Methods, Grammar, Meta Analysis
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Lee, Sang-Ki; Huang, Hung-Tzu – Studies in Second Language Acquisition, 2008
Effects of pedagogical interventions with visual input enhancement on grammar learning have been investigated by a number of researchers during the past decade and a half. The present review delineates this research domain via a systematic synthesis of 16 primary studies (comprising 20 unique study samples) retrieved through an exhaustive…
Descriptors: Effect Size, Linguistic Input, Intervention, Grammar