How Effective is Orton-Gillingham?

        In this article in Exceptional Children, Elizabeth Stevens (Georgia State University), Clint Moore, Nancy Scammacca, Alexis Boucher, and Sharon Vaughn (University of Texas/Austin), and Christy Austin (University of Utah) report on their meta-analysis of 16 studies of Orton-Gillingham, a popular and widely used approach to reading instruction. Orton- Gillingham is described as a “direct, explicit, multisensory, structured, sequential, diagnostic, and prescriptive” method for teaching children with (or at risk for) word-level reading disabilities, including dyslexia. 

        The researchers’ conclusion: although the mean effect size (0.22) was positive and somewhat promising, Orton-Gillingham did not substantially improve children’s phonological awareness, phonics, fluency, spelling, vocabulary, and reading comprehension. “Despite the continued widespread acceptance, use, and support for Orton-Gillingham instruction,” conclude Stevens et al., “there is little evidence to date that these interventions significantly improve reading outcomes for students with or at risk for word-level reading disabilities over and above comparison group instruction.” 

        This finding certainly raises concerns about the fact that a number of states have adopted legislation mandating Orton-Gillingham. “More high-quality, rigorous research with larger samples of students with word-level reading disabilities,” say the authors, “is needed to fully understand the effects of Orton-Gillingham interventions on the reading outcomes of this population.” 

 “Current State of the Evidence: Examining the Effects of Orton-Gillingham Reading Interventions for Students with or at Risk for Word-Level Reading Disabilities” by Elizabeth Stevens, Christy Austin, Clint Moore, Nancy Scammacca, Alexis Boucher, and Sharon Vaughn in Exceptional Children, July 2021 (Vol. 87, #4, pp. 397-417); Stevens can be reached at estevens11@gsu.edu.

Please Note: This summary is reprinted with permission from issue #897 of The Marshall Memo, an excellent resource for educators.