This study investigated the prevalence and stability of latent classes among elementary-aged English learning (EL) children whose first language is Spanish. To this end, EL children (N = 267) in Grades 1, 2, and 3 at Wave 1 (Year 1) were administered a battery of vocabulary, reading, math, and cognitive measures (short-term memory, working memory,…

This study investigated whether a latent class of children with math difficulties (MD) or math learning disabilities (MLD) emerged within a heterogeneous sample of learners. A latent class analysis was computed on children (N = 447) in Grade 3 who were administered a battery of math, reading, and cognitive measures. The analysis yielded four…

Many practitioners and state education agency staff would likely agree that the accuracy and consistency of specific learning disability (SLD) eligibility decisions is in need of improvement. One component of the SLD definition particularly controversial in the identification procedures is the evaluation of cognitive processes, primarily due to a…

This study investigated the prevalence and stability of latent classes at risk for reading disabilities (RD) in elementary-aged children whose first language is Spanish. To this end, children (N = 489) in Grades 1, 2, and 3 at Wave 1 were administered a battery of reading, vocabulary, and cognitive measures (short-term memory [STM], working memory…

Although current categories of learning disabilities include as specific disabilities calculation and mathematical problem solving [see IDEA reauthorization, 2004, Sec. 300.8(c)(10)], the majority of research focuses on calculation disabilities. Previous studies have shown, however, that deficits in word problem solving difficulties are persistent…

This article synthesizes the experimental literature that compares the academic, cognitive, and behavioral performance of adults with reading disabilities to those of average-achieving adult readers. The central question posed by this review is to what extent and in what manner do adults with reading disabilities differ from adults without reading…

Twelve nondisabled adolescents were superior to 12 learning disabled students in performance on all types of strategy transformations presented on simple arithmetic computation tasks. Significant ability-group differences emerged on reduction to answer, saving partial results, unit building, and alternative method transformations. Results…

The article reviews literature on the information processing model with learning disabled children. Assumptions concerning the role of automaticity, prior knowledge, and executive functioning are questioned. Also discussed are procedures for identifying common denominations, subgrouping, isolating mental components underlying academic change, and…

This study examines whether residual recall differences between reading ability groups after a memory training task reflect the dimensions of organizational processing. Although age-related effects occurred, no ability group effects emerged, suggesting that learning disabled readers adequately access word features except when organized by…

In three experiments on auditory free recall of words, involving 10 learning disabled (LD) and 10 nondisabled (ND) elementary students, the ND recalled more low and high cognitive effort words than LD students. Supports the hypothesis that ND and LD readers differ in processing capacity; however, cognitive effort improves results. (Authors)

Investigated whether limitations in the enhancement of learning-disabled readers' working memory (WM) performance are attributable to process or storage functions. Found that: intercorrelations among diverse WP measures increased on demanding conditions; and verbal WM was not directly related to reading skill, supporting the notion that poor…

Results of two experiments involving 206 upper elementary school students supported the hypothesis that less-skilled readers suffer working memory deficits that contribute to comprehension problems independent of their problems in phonological coding. Results also suggest that constraints in an executive system may contribute to reading…

Details meta-analysis of 58 intervention studies related to higher-order processing (i.e., problem solving) for adolescents with learning disabilities. Discusses factors that increased effect sizes: (1) measures of metacognition and text understanding; (2) instruction including advanced organizers, new skills, and extended practice; and (3)…

Hierarchical analysis of a test battery of sentence span, preload, and concurrent memory demand tasks was used to identify subgroups of children with different patterns of memory function. For each subgroup, performance strengths and weaknesses were related to reading, mathematics, and spelling performance. (Author/DB)

A study investigated the relationship between working memory (WM), declarative strategy knowledge, and math achievement in 111 children with and without mathematical disabilities (MD). Results found verbal and visual-spatial WM, stable verbal strategy choices, and expert strategy choices related to visual-spatial processing all contributed…