A high comorbidity between reading and arithmetic disabilities has already been reported. The present study aims at identifying more precisely patterns of arithmetic performance in children with developmental dyslexia, defined with severe and specific criteria. By means of a standardized test of achievement in mathematics ("Calculation and…

Traditionally, students with learning disabilities (LD) have been identified using an aptitude--achievement discrepancy or response to intervention approach. As profiles of the cognitive deficits of discrepancy-defined students with LD have already been developed using these approaches, these deficits can in turn be used to identify LD using the…

Sequential regression was used to evaluate whether language-related working memory components uniquely predict reading and writing achievement beyond cognitive-linguistic translation for students in Grades 4 through 9 (N = 103) with specific learning disabilities (SLDs) in subword handwriting (dysgraphia, n = 25), word reading and spelling…

In transparent orthographies like German, isolated learning disabilities in either reading or spelling are common and occur as often as a combined reading and spelling disability. However, most issues surrounding the cognitive causes of these isolated or combined literacy difficulties are yet unresolved. Recently, working memory dysfunctions have…

This investigation analyzed the relation between cognitive functioning and mathematical achievement in 114 students in fourth, fifth, and sixth grades. Differences in cognitive performance were studied concurrently in three selected achievement groups: mathematical learning disability group (MLD), low achieving group (LA), and typically achieving…

This study examined the pattern of results on the "Wechsler Intelligence Scale for Children" (WISC-IV; French version) for 60 French children with dyslexia, from 8 to 16 years of age. Although use of WISC-III failed to clearly identify typical profiles and cognitive deficits in dyslexia, WISC-IV offers an opportunity to reach these…

This work examines the role of morphological awareness in contrast to phonological processing in reading comprehension amongst two groups of native Arabic children: a group with learning disabilities (LD) and a mainstream group who were matched to the LD group in age or reading level. Measures of reading comprehension fluency, phonological skills,…

This article examines working memory functioning in children with specific developmental disorders of scholastic skills as defined by ICD-10. Ninety-seven second to fourth graders with a minimum IQ of 80 are compared using a 2 x 2 factorial (dyscalculia vs. no dyscalculia; dyslexia vs. no dyslexia) design. An extensive test battery assesses the…

Fifteen children ages 7 to 9 years who had persistent reading difficulties despite adequate instruction were provided with intensive tutorial interventions. The interventions targeted deficient phonological processing and decoding skills for 8 weeks (2 hours per day) followed by an 8-week, 1-hour-per-day intervention that focused on the…

This article introduces a special issue on the double-deficit hypothesis for dyslexic readers' failure to acquire adequate word recognition skills. This theory suggests that dyslexic readers have a deficit in naming speed in addition to the more widely recognized deficit in phonological decoding skill. (Contains references.) (DB)

Nine college students with learning/reading disabilities were compared with reading-level (RA) and chronological age (CA) contrast groups on several phonological and morphological computerized information-processing tasks. Target students showed both quantitative and qualitative differences in processing tasks. Results support the integration of…

In response to Coles (EC 220 146) the author outlines points of agreement and identifies points of divergence including Coles' confusion of ordinary poor reading with true dyslexia, the role of phonological processes, and philosophy of science issues concerning Coles' alternative interactivity theory. (DB)

This study examined 87 pedigrees of individuals with histories of preschool phonology disorders. Significantly more family members with dyslexia and learning disabilities, but not stuttering or hearing impairment, were found in pedigrees of individuals with phonology disorders than in pedigrees of nondisabled individuals. (Author/JDD)

This study examined the degree to which 31 13-year-old children with learning disabilities were comparable to younger reading and spelling matched controls in (1) phonological similarity effects, (2) phonetically based misspellings, and (3) relationships between memory and spelling performance. An overreliance on phonological codes was found for…

This study with 47 university students having reading disabilities, 15 students with other learning disabilities, and 12 nondisabled readers found that most nondisabled subjects used a phonological rehearsal strategy for words and nonwords, whereas students with reading disabilities consistently used a strategy of visual scanning for these tasks.…