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…

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…

The cognitive patterns of three learning disability subtypes were studied: (1) students with higher math than reading skills, (2) students with higher reading than math skills, and (3) students with equally low math and reading skills. Results indicated that although the three groups were characterized by a number of discrete or unique patterns,…

Eighty-eight children were identified as having attention deficit disorder with hyperactivity (ADD-H) and 58 with attention deficit disorder without hyperactivity (ADD). When the two subgroups were compared, teachers rated ADD-H children more problematic. Teacher ratings could discriminate ADD from ADD-H groups. Findings corroborated distinctions…

Critically evaluates recent research aimed at empirical identification of homogeneous subtypes of learning disability. It is suggested that researchers strive for more commonality in the methods and measures used for subtype analysis leading to a single classification scheme to reduce heterogeneity and improve educational efforts. (Author/DB)

The identifying features of nonverbal learning disabilities (NLD) were evaluated with 29 NLD children, 27 children with reading and spelling disabilities, and 27 nonclinical children. Four tests were found which accurately discriminated the NLD group from the others. Deficits in visual-perceptual-organizational psychomotor coordination and complex…

A sample of 74 Finnish children with mild learning disabilities and 57 controls were grouped into 5 subgroups (normal, general language, visuo-motor, general deficiency, naming) and followed from the third to the sixth grade. Results indicated that neuropsychological profiles were generally maintained, with changes related to progress in reading.…

This article critically analyzes available definitions of learning disability. The general problem of definition is discussed first, followed by a discussion of individual definitions from the earliest to the latest. It is concluded that the definitions fail to provide substantive insight into the nature of the condition. (Contains extensive…

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 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…

This study of 38 right-handed children (age range 90 to 201 months) with dyslexia found characteristic patterns of organization of intellectual functions, of hemispheric specialization, and of reading errors in the subtypes, identified as linguistic dyslexia, perceptual dyslexia, and mixed dyslexia. (DB)

Using cluster analysis, a study empirically divided 54 children with attention-deficit/hyperactivity disorder (ADHD) based on their Full Scale IQ and reading ability. Clusters had different patterns of cognitive, behavioral, and neurochemical functions, as determined by discrepancies in Verbal-Performance IQ, academic achievement, parent…

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…

A comparison of cognitive, academic, and linguistic profiles for 74 learning-disabled students and 37 nondisabled college students found significant differences in reading, writing, listening, and speaking achievement. No significant differences were found for gender or Verbal-Performance split in cognitive ability. Instruments used showed similar…