U.S. Department of Education, Institute of Education Sciences, What Works Clearinghouse. (2010).
Princeton (NJ): What Works Clearinghouse, 5.
This review investigates the effect of unbranded Orton-Gillingham-based strategies on the reading skills in school-age students, grades K-12, with learning disabilities.
Institute of Education Sciences, U.S. Department of Education
See full text for additional details on the What Works Clearinghouse evidence rating scheme.
1989-2009
Randomized controlled trial; quasi-experimental study design
0
"No studies of unbranded Orton-Gillingham–based strategies that fall within the scope of the Students with Learning Disabilities review protocol meet What Works Clearinghouse (WWC) evidence standards. The lack of studies meeting WWC evidence standards means that, at this time, the WWC is unable to draw any conclusions based on research about the effectiveness or ineffectiveness of unbranded Orton-Gillingham–based strategies for students with learning disabilities" (p. 1).
