Response to intervention (RTI) arose, in part, from the limited success of the pre-referral process, an approach advocated in the 1980s and 1990s, and accurately measuring the discrepancy between aptitude and achievement in young children. Reflecting these concerns, when the Individuals with Disabilities Education Act (IDEA) was reauthorized in…

In recent years, an increasing number of states have been moving towards the development and implementation of longitudinal data systems for tracking the progress of individual K-12 students with disabilities across their academic careers up to and including their postsecondary activities. In an effort to avoid duplication of data collection…