Misclassification of Learning Disabilities vs. Low Achievement

Introduction: The Classification Debate

There has been a great deal of speculation as to whether students identified with a learning disability are truly disabled or are simply low achievers, non-native English speakers, or possibly victims of poor reading and math instruction. Kaufman, Hallahan, and Wills (1998), in their article "Politics, Science, and the Future of Learning Disabilities," posit that advocacy for those labeled as learning disabled has taken on a more political position than a scientific one. They readily acknowledge that some advancements have been made in the field, but not to the level that has significantly informed the research and, as such, affected real change for students. Furthermore, the authors assert that in order for real advancement to occur within the field of learning disability, there must be consistent, persistent, careful, and systematic empirical research (Hallahan, Kauffman, & Lloyd, 1999).

This point is deemed important because, in the opinion of Kaufman, Hallahan, and Wills — and others within the educational system — the descriptor "learning disability" has taken on such a wide-reaching and overarching meaning that it clouds the issue and makes it difficult to determine which students are truly learning disabled and which may have been placed in that category for any number of other reasons.

Political vs. Scientific Approaches to Learning Disability

Kaufman, Hallahan, and Wills acknowledge that advocacy on behalf of the millions of children labeled as learning disabled is important, because in the absence of such advocacy, these children would not have access to the educational services prescribed as a result of their classification. What seems to be the central focus of their argument, however, is that the work of truly determining whether a student is learning disabled cannot be lost in political positioning, because in the end — whether properly classified or not — the students are the ones who suffer. What further complicates this issue is the posited view that there is no clear, reliable, and consistent method of diagnosis universally applied in determining whether a student is truly learning disabled.

There is no unified consensus among experts as to the best way to arrive at a proper diagnosis, which leaves the issue open to political influence. At present, the only kind of routinely and systematically applied diagnosis comes from student response to instruction. As a result, many students are misclassified. This creates particular difficulty for students who have poor comprehension as well as for those who may be English language learners. If a child already struggles academically for reasons unrelated to a true learning disability, that child will still struggle in terms of responsiveness and will consequently be classified as learning disabled in many instances.

Diagnostic Inconsistency and Misclassification

Questions also arise regarding children who may be intellectually disabled — scoring low in most or all subject areas in response to what is deemed adequate instruction — and students who perform poorly in significant areas but show acceptable scores in others. These students are often classified as learning disabled, but is that classification accurate? Kaufman, Hallahan, and Wills argue that because etiology cannot truly be ascertained through the methodology most commonly employed to make classification decisions, confusion in classification is the inevitable result. Moreover, the question of what constitutes acceptable performance remains unresolved, as there are significant inconsistencies in defining that standard across school systems.

The absence of a universal diagnostic framework means that factors such as teacher judgment, school resources, and student demographics can all influence how a child is ultimately labeled. Without a scientifically grounded and consistently applied standard, the classification process remains vulnerable to the very political pressures that Kaufman, Hallahan, and Wills critique.