A Meta-Analysis of Writing Treatments for Students in Grades 6–12.

There is considerable concern that many adolescents do not attain the writing competence needed to be successful in school, their personal lives, or the workplace. Ensuring that students acquire this competence is a basic responsibility of schools. In order to meet this objective, teachers need access to effective practices for teaching writing. In this meta-analysis, we examined if teaching writing improved the writing and reading of students in Grades 6–12, and what specific writing treatments enhanced students' writing. Our review included writing treatments tested using an experimental or quasi-experimental design (with pretests) and published and unpublished studies, and computed effect sizes (ESs) for all writing and reading outcomes assessed. Across 406 independent comparisons, yielding 3,514 ESs involving 52,529 students, teaching writing had a positive and statistically detectable impact on students' writing (ES = 0.47) and reading (ES = 0.22). Moreover, a variety of different writing treatments improved students' performance on writing measures. Across all writing outcomes, statistically detectable effects (presented in parentheses) were obtained for comprehensive writing programs (0.47; which included the process approach to writing), strategy instruction (0.76), digital writing tools (0.31), transcription instruction (0.71), computer-assisted instruction (0.32), teaching critical/creative thinking skills for writing (0.27), emulating good models of writing (0.46), feedback (0.34), goal setting (0.44), prewriting activities (0.49), grammar instruction (0.77), sentence instruction (0.73), inquiry (0.92), observing writers/readers, peer assistance (0.41), summarization instruction (0.49), and text structure instruction (0.39). Implications for practice, research, and theory are discussed. Educational Impact and Implications Statement: In this meta-analysis, we identified instructional practices that improve the writing of students in Grades 6–12. We found that multiple procedures can improve these students' writing including the process writing approach, setting writing goals, prewriting and inquiry activities for gathering and organizing writing content, emulating models of good writing, writing with digital tools, peers assisting each other with writing, students observing other writers and readers interacting with text, as well as teaching writing strategies, grammar, spelling, sentence construction, summary writing, creative or critical thinking skills, and text structure instruction. Teaching writing also improved Grade 6–12 students' reading. [ABSTRACT FROM AUTHOR]