Numerical competence in young children and in children with mathematics learning disabilities

A longitudinal study was conducted on 82 children to investigate, firstly the numerical competence of young children and the predictive value of (pre)-numerical tests in kindergarten, and, secondly, whether children's knowledge of the numerical system and representation of the number size is related to their computation and logical knowledge and to their counting skills. In an additional cross-sectional study on 30 children with a clinical diagnosis of mathematical learning disability (MLD) of 8,5 years, age- and ability-matched with 2 × 30 children the same parameters of numerical competence were assessed. The longitudinal data showed individual differences in numerosity, as well as the relationship between a delay in arithmetics in grade l and problems on numerosity in kindergarten. In the cross-sectional results some evidence was found for the independence of numerical abilities in MLD-children. About 13% of them had still severe pre-numerical processing deficits (in number sequence production, cardinality skills and logical knowledge) in grade 3. About 67% had severe difficulties in executing calculation procedures and a lack of conceptual knowledge. A feature of 87% of the MLD-children was severe translation deficits, with a significantly worse knowledge of number words compared with the knowledge of Arab numerals. Finally a severe deficit in subitizing was found to be present in 33% of the MLD children. On a group level the processing deficits were linked to understanding numerosity, since the ability-matched younger children and the MLD-children had the same pre-numerical and numerical profile. Implications for the assessment of mathematical disabilities and the value of TEDI-MATH® as an instrument in this process are discussed.     

Communication competence in reading and learning disabilities

Conclusion The evidence indicates that learning-disabled children show pervasive and enduring language problems across a wide variety of language tasks. The studies suggest that the problems experienced by learning and reading-disabled children may fall into the categories of phonology, syntax, semantics, and pragmatics as well as nonverbal communication. In terms of nonverbal communication, these children are less accurate in interpreting nonverbal auditory and visual cues. In phonology, it appears that they are less skilled in detecting the segments of single words and thus have difficulty establishing phoneme to grapheme correspondence. In the area of syntax, learning-disabled males are less skilled in dealing with inflection and the comprehension and creation of complex sentences. In semantics, they are less adequate than nondisabled children in defining words, creating sentences, and classifying objects into categories. They show less adequate sentence production, are less skilled at recognizing their errors, and are significantly slower in generating verbal responses. Finally, there is one study that suggests that learning-disabled children may be discriminated by their use of language in social situations. This paper was presented at the 29th Annual Conference of The Orton Society at Minneapolis, November, 1978.     

Comprehension of humor in children with nonverbal learning disabilities,reading disabilities,and without learning disabilities

The normal development of humor in children has been well documented with a predictable course that is tied to social, cognitive, and linguistic development in children. This study explored humor comprehension in children with nonverbal learning disabilities (NVLD). Children with NVLD were compared with children with reading disabilities and a comparison group of children with no learning disabilities to assess their comprehension of humor. The humor test was composed of a joke and cartoon section. No group differences in humor comprehension were found when the NVLD group was defined as having visual–spatial and visual reasoning deficits. However, when the NVLD group was divided into children with and without social perceptual difficulties as defined by a direct measure of social comprehension, significant group differences were found in the levels of humor comprehension. These results support the association of humor comprehension with social perception and lend tentative support to the hypothesis that children with NVLD may not be a homogenous group. Future study directions include further exploration into the nature of the association between humor comprehension and social perception as well as closer examination of the heterogeneity of NVLD.     

Conversational engagement of children with learning disabilities

This study was designed to characterize the conversational engagement techniques employed by children with and without learning disabilities while in a dyadic interaction. Engagement was defined and measured in terms of the degree to which utterances provided information and evidenced responsiveness to one's conversational partner. Sixty (30 with learning disabilities and 30 nondisabled) 9- to 13-year-old subjects participated. Analyses indicated that the subjects with learning disabilities (LD) could and did employ engagement-related techniques similar in levels of sophistication to those of their nondisabled peers, although they did so less consistently and frequently. Further, the relationship between affective measures and the engagement-related techniques used by the subjects with LD differed markedly from those of the nondisabled subjects. The results are interpreted from a motivational standpoint and suggest that future research should focus on the knowledge and application of engagement-related techniques of the children with LD, across settings and conversational partners.     

Social competence and problem behavior of adolescent girls with learning disabilities

Estimates of social competence and problem behavior were obtained using the Child Behavior Checklist (Achenbach & Edelbrock, 1983) for a sample of 51 adolescent girls with learning disabilities. Results identified poor social competence and elevated problem behaviors, in comparison to a normative group of nonhandicapped adolescents. Implications for both diagnosis and research are addressed.     

The social experience of early childhood for children with learning disabilities: inclusion,competence and agency

This paper tells of the social experiences of three four‐year‐old children with learning disabilities as they negotiate their daily lives in their homes and early education settings in England. We apply a social model of childhood disability to the relatively unexplored territory of young children and use vignettes drawn from video observation to explore the interactive spaces contained in settings with different cultures of inclusion. Using a multimodal approach to the data we show the nuanced ways in which the children enact their agency. We explore the relationships between agency, culture and structure, and argue that children with learning disabilities are active in making meaning within social and relational networks to which they contribute differently depending on the barriers to doing and being that each network presents. Thus, the paper provides an original use of the notion of distributed competence.     

Subtraction by addition in children with mathematical learning disabilities

In the last decades, strategy variability and flexibility have become major aims in mathematics education. For children with mathematical learning disabilities (MLD) it is unclear whether the same goals can and should be set. Some researchers and policy makers advise to teach MLD children only one solution strategy, others advocate stimulating the flexible use of various strategies, as for typically developing children. To contribute to this debate, we compared the use of the subtraction by addition strategy to mentally solve two-digit subtractions in children with and without MLD. We used non-verbal research methods to infer strategy use patterns, and found that both groups of children switch between the traditionally taught direct subtraction strategy and subtraction by addition, based on the relative size of the subtrahend. These findings challenge typical special education classroom practices, which only focus on the routine mastery of the direct subtraction strategy.     

Sustained and selective attention in children with learning disabilities

Sustained and selective attention of 30 fourth-, fifth-, and sixth-grade students with learning disabilities (LD) and 20 controls were compared. A continuous performance test (CPT) yielded no differences for students with LD and controls, suggesting similar ability for both groups in sustaining attention and inhibiting impulsive responding. Subjects with LD made more errors than controls on a selective attention task when letter distractors were adjacent to the target letter but not when they were distant, and more correct responses than controls when facilitating letters were adjacent to the target, suggesting that students with LD are less able to narrow the focus of their attention. Longer response times by students with LD indicate that they have slower information-processing skills than controls. Regrouping students according to teacher ratings for attention deficit-hyperactivity disorder (ADHD) yielded the customary impulsive response set on the CPT and more errors on the selective attention task, but no differences on response times for students with ADHD. LD students with ADHD made more errors than LD students without ADHD when letter distractors were adjacent to the target letter.     

The adult outcomes of children with learning disabilities

The results of four follow-up studies of learning-disabled children are reviewed. A comparison of results among the studies and of analyses of individual variation within the studies suggest some factors associated with long-term outcomes. It is argued that in many cases learning disabilities are not a lifelong handicapping condition, especially if adequate treatment is provided during childhood.     

Concerns of families of children with learning disabilities

The purpose of this report is to share the experiences and concerns of a group of parents of children with learning disabilities. Parents of eight different families were interviewed in depth, and seven themes emerged from the interviews. Parents discussed their involvement in their child's education, and their positive and negative experiences with school personnel as well as with seeking other sources of support. They expressed concerns about the social isolation and future well-being of their children with learning disabilities. They indicated many emotional strains from parenting children with learning disabilities, and that there are both positive and negative effects on the families. Implications for further research and practice are discussed.