In this study, we identified child- and family-level characteristics most strongly associated with clinical identification of language disorder for preschool-aged children. We used machine learning to identify variables that best classified children receiving therapy for language disorder among a sample of 483 3- to 5-year-old children (54%…

The current study investigated the stability of children's risk status across the preschool year. A total of 1,102 preschool children attending Title 1 schools (n = 631) and non-Title 1 schools (n = 471) participated in this study. Using averaged standard scores for two measures of language, print knowledge, and phonological awareness administered…

All but seven U.S. states have laws that govern some aspects of dyslexia screening, intervention, or teacher training in public schools. However, in the three states that mandate child-level reporting, data indicate lower than expected rates of dyslexia identification when compared with commonly accepted dyslexia prevalence rates. To better…

Although the exact prevalence is not determined, a noticeable subset of individuals who enroll in adult education and training programs have either diagnosed or undiagnosed specific learning disabilities (SLD). Understanding SLD is important basic information for adult educators to inform program policies as well as determine effective…

The regression-based discrepancy definition of learning disabilities has been suggested by Rutter and Yule as an improvement of the well-known and much criticized achievement-intelligence discrepancy definition, whereby the examinee's predicted reading attainment is substituted for the intelligence score in the discrepancy expression. Even though…

Much has been written about gifted students with learning disabilities, but there have been few large-scale empirical investigations, and the concept has proven controversial. The authors reviewed the available empirical literature on these students, focusing on (a) the criteria by which the students were identified and (b) the students'…

Based on the latest U.S. Department of Education data, this article presents the enrollment figures for students identified with specific learning disabilities (SLD) under the Individuals with Disabilities Education Act (IDEA) for the school years from 1995-1996 to 2011-2012. The figures for each year are (a) the number of students with SLD ages 6…

The purpose of the present studies was to provide the means to create brief versions of instruments that can aid the diagnosis and classification of students with learning disabilities and comorbid disorders (e.g., attention-deficit/hyperactivity disorder). A sample of 1,108 students with and without a diagnosis of learning disabilities took part…

The present study evaluated the stability of math learning difficulties over a 2-year period and investigated several factors that might influence this stability (categorical vs. continuous change, liberal vs. conservative cut point, broad vs. specific math assessment); the prediction of math performance over time and by performance level was also…

Emergent literacy skills are predictive of children's early reading success, and literacy achievement in early schooling declines more rapidly for children who are below-average readers. It is therefore important for teachers to identify accurately children at risk for later reading difficulty so children can be exposed to effective emergent…

This study examined the consequences of classifying postsecondary students as learning disabled (LD) using five objective sets of criteria: IQ-achievement discrepancies (1.0 to 1.49 SD, 1.5 to 1.99 SD, and greater than or equal to 2.0 SD), DSM-IV criteria, and chronic educational impairment beginning in childhood. The participants were 378…

This article reviews the validity of models based on (a) aptitude--achievement discrepancies, (b) low achievement, (c) intraindividual differences, and (d) response to instruction for the classification and identification of learning disabilities (LD). Models based on aptitude--achievement discrepancies and intraindividual differences showed…

This study found that 331 Toronto (Ontario, Canada) adolescent and adult subjects with learning disabilities could be grouped into three subtypes: (1) arithmetic disability, (2) reading disability, and (3) reading and arithmetic disabilities. Each group differed significantly from the others on tests of reading, spelling, memory, and other…

The experience of the Board of Cooperative Educational Services of suburban Buffalo, New York, belies the beliief that traditional practices of labeling students are necessary to obtain funding of special educational programs. (DB)