Authors: What Works Clearinghouse.
Publication: (US Department of Education, Institute of Education Sciences). 2010
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.