Students with specific learning disabilities (SLD) represent roughly five percent of U.S. public school students aged 3-21. Current federal policy outlines guidelines for identification of SLDs, while ultimately leaving specific procedures to the determination of state and local education agencies. Research into how the method used in…

We investigated the variability across states in the prevalence of learning disabilities (LD) as reported by the U. S. Department of Education's Office of Special Education Programs (OSEP). This expanded upon the work of Hallahan and colleagues on interstate prevalence rate variability of special education disability categories by focusing on a…

Because several studies have investigated student outcomes in schools implementing Response to Intervention (RtI), relatively little research has investigated the impact of implementation on students' long-term achievement outcomes (i.e., several years after exposure). The purpose of this study was to describe one elementary school's RtI…

Personalized augmentative and alternative communication (AAC) intervention refers to an approach in which intervention is tailored to the individual's needs and skills, the needs and priorities of the individual's family and other social environments, the evidence base, and the individual's response to intervention. This approach is especially…

Some claim that good and poor readers continue their trajectories despite intervention. This quasi-experimental study examined whether the READ 180 program helps general education, below-grade-level, Title I pre-adolescent readers improve. Participants included 82 students, grades 4-8, in public Title I elementary and middle schools. Results…

Background: The finding of positive outcomes at the group level for children with autism spectrum disorder (ASD) who complete comprehensive early intervention programmes often masks considerable individual variability. We therefore aimed to identify subgroups of children based on their response to intervention and to compare outcome variables…

The purpose of this study was to compare the long-term effects of 2 first-grade Response to Intervention (RTI) models (Dynamic and Typical RTI) on the reading performance of students in second and third grade. Participants included 419 first-grade students (352 in second grade and 278 in third grade after attrition). Students were classified based…

We explored the usefulness of first and second grade reading measures and responsiveness criteria collected within a response-to-intervention (RtI) framework for predicting reading disability (RD) in third grade. We used existing data from 387 linguistically diverse students who had participated in a longitudinal RtI study. Model-based predictors…

The educational systems in all countries have failed to adequately address the problems of students with learning disabilities. Antisocial behaviour, homelessness, mental health problems and even suicide are a result. This article will explore the reasons for this state of affairs. One of the major reasons is excessive reliance on testing without…

Models of irregular word reading that take into account both child- and word-level predictors have not been evaluated in typically developing children and children with reading difficulty (RD). The purpose of the present study was to model individual differences in irregular word reading ability among 5th grade children (N = 170), oversampled for…

Early identification of students who are at-risk for reading difficulties (RD) is critical for successful and effective RTI implementation. A large group of students were followed for three years (grades 2 to 4) to investigate transition patterns of risk-categories across three years. Results indicated that although students identified at…

The present study seeks to evaluate a hybrid model of identification that incorporates response to instruction and intervention (RTI) as one of the key symptoms of reading disability. The 1-year stability of alternative operational definitions of reading disability was examined in a large-scale sample of students who were followed longitudinally…

This 4-year longitudinal research was designed to study special education determinations of students who participated in Tier 2 intervention in a Response to Intervention (RtI) model focused on reading across Grades 1-4. We compared identification rates for learning disabilities (LD) and student characteristics of 381 students the year prior to…

This four-year longitudinal research was designed to study special education determinations of students who participated in Tier 2 intervention in a Response to Intervention (RtI) model focused on reading across Grades 1 through 4. We compared identification rates for learning disabilities and student characteristics of 381 students the year prior…

We explored the usefulness of 1st and 2nd grade reading measures and responsiveness criteria collected within a Response-to-Intervention (RtI) framework for predicting Reading Disability (RD) in 3rd grade. We used existing data from 387 linguistically diverse students who had participated in a longitudinal RtI study. Model-based predictors of RD…