Treatment Validity as a Unifying Construct for Identifying Learning Disabilities

The purpose of this article is to revisit the issue of treatment validity as a framework for identifying learning disabilities. In 1995, an eligibility assessment process, rooted within a treatment validity model, was proposed that (a) examines the level of a student's performance as well as his/her responsiveness to instruction, (b) reserves judgment about the need for special education until the effects of individual student adaptations in the regular classroom have been explored, and (c) prior to placement, verifies that a special education program enhances learning. We review the components of this model and reconsider the advantages and disadvantages of verifying a special education program's effectiveness prior to placement.