In response to a previous article, the paper argues that effective instruction of the learning disabled is most likely to develop from systematic theoretically based research though instructional studies can contribute to theory development. Research in many other areas is necessary to develop the powerful teaching methods required. (DB)

This commentary on C. Addison Stone's paper on the scaffolding metaphor for the learning disabilities field urges that all available literature, rather than a particular metaphor, should be used to evaluate the efficacy of instructional procedures in interpreting findings of instructional research. (Author/DB)

This article applies results of a previous meta-analysis of effective instructional practices with adolescents who have learning disabilities focusing on the factor, "Organization/Explicit," which contributed significant variance to effect size. This factor included the important instructional components of advance organization and explicit…