“…Limited evidence exists in general on the efficacy of instructional programs that target text generation directly and primarily (McMaster, Kunkel, Shin, Jung, & Lembke, 2018). In a best-evidence review, McMaster et al (2018) showed that 17 out of 25 studies addressing Grades 1 to 3 targeted text generation in multicomponent interventions; however, most of them did not examine the specific contribution of training text generation processes. Other meta-analyses that examined the effectiveness of writing interventions with elementary school children (Graham, McKeown, Kiuhara, & Harris, 2012;Graham & Perin, 2007) or older writers (Graham & Perin, 2007) analyzed four types of instructional programs focused primarily on text generation-explicit teaching of grammar, sentence combining, teaching text structure, and emulating good texts-and reported only small to moderate efficacy (effect sizes from 0.25 to 0.59) for those programs.…”