Four issues facing the field of learning disabilities are discussed: (1) defining learning disabilities in terms of discrepancy scores; (2) delineating the boundaries of how specific a learning disability must be; (3) identifying treatments with scientific credibility; and (4) implementing instructional policy that is in the best interest of the…

In response to articles concerning the author's earlier paper, the paper responds to criticisms concerning contextualism, the role of metatheory, distinctions between basic and applied research, cognitive components and specificity, the science of learning disabilities, neurological indices, model validation, and the nature of learning…

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…

This paper reports on a meta-analysis of the research literature on effective teaching models for students with learning disabilities. It concludes: that the most effective models combined components of direct and strategy instruction; that eight major instructional factors captured most intervention programs; and that the explicit strategy…