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%…

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…

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…

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 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…

This article discusses the inclusion of high functioning individuals in the learning disability category. It argues that extending services to individuals without significant academic impairments may deplete resources for others in greater need, distort the normal processes by which individuals select careers, and diminish the credibility of the…

Characteristics of the aggressive, severely behavior disordered (BD) child are discussed, with a focus on classification and identification criteria. Additional factors directly related to the behavior of an aggressive, severely BD child are also considered: biological factors, familial factors, cognitive factors, frustration (specifically…

A study investigated whether higher prevalence of reading disabilities among boys is related to gender bias in the prediction of reading from IQ. Data from 1,139 New Zealand children (collected during ages 5-13) indicate a significant intercept bias. Boys' predicted reading scores were systematically overestimated, thereby inflating IQ-reading…

A replication study compared 86 petition students who received course substitutions for the college foreign language (FL) requirement with 40 nonpetition students who fulfilled the requirement by passing FL courses. Findings indicate more than half of all the students did not meet criteria for learning disability classification. (Contains…

A review of the history and current status of screening and differential diagnosis in the field of learning disabilities concludes that continued efforts at refinements in diagnosis/classification are unproductive. The authors offer a variety of concrete recommendations from a data-based perspective to make appropriate educational experiences…

A study examined the stability over 19 months of academic subtyping classification of 80 children (ages 9 to 13) representing four subtypes of arithmetic disabilities (AD). Approximately half of the sample retained AD regardless of identification method. Children with deficits in arithmetic, reading, and spelling disabilities exhibited the…

A study involving 1,123 children investigated the relationship between naming speed and phonological awareness skills and the implications for the classification of children at risk of reading disability. Results found a positive correlation between naming speed and phonological awareness and indicate this relationship will affect any comparison…