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PubMed1980

Relating infant temperament to learning disabilities.

The role of infant temperament in the development of learning disabilities was at issue. As infants, boys with severe learning disabilities were found to be (1) lower in activity level, (2) more irregular, (3) less approaching, and (4) more negative in mood than "normal" boys. Discussion centered around conceptualizing learning disabilities as the outcome of a developmental process. Thus patterns of early parent-infant interaction are established, based in part upon the infant's temperament, that may evolve into a learning disability.

Child↗

PubMed1995

An overview of learning disabilities: psychoeducational perspectives.

In general, people with learning disabilities are a heterogeneous population that require a multidisciplinary evaluation and careful, well-planned intervention. Despite this heterogeneity, patterns of problems often co-occur. Therefore, diagnosticians and educators should look beyond single areas of achievement such as reading or arithmetic. In addition, problems in one area of learning typically have secondary impacts on higher levels of learning. That is, comprehension problems typically interfere with expression. Every effort should be made to examine patterns of problems and to avoid fragmentation of services so that each area of underachievement is not treated separately. Although learning disabilities usually interfere with school performance, they are not simply academic handicaps. They interfere with certain social activities as well as occupational pursuits. In many instances, they impact on mental health and self-esteem. Therefore, students need multiple services. And, as emphasized throughout this journal issue, learning disabled individuals may have comorbid conditions such as attention deficit disorder, depression, and neurologic problems. Furthermore, the problems may change over time. Children may first be identified because of language comprehension problems but later have reading or mathematics difficulty. With intervention, oral expressive problems may be alleviated but may be manifested later in written language.

Child↗

PubMedDate not supplied

Mainstream Experiences for Learning Disabled students (Project MELD): preliminary report.

Mainstream Experiences for the Learning Disabled (MELD) was developed to accommodate students with learning disabilities in the mainstream. This article reports the progress of 13 students at the end of 1 year of planning and 1 year of implementing the MELD model in one urban elementary school. Observational and school adjustment data from the implementation year suggest that although the MELD model was not fully incorporated into the mainstream classes, students with learning disabilities adjusted well to a less individualized and more demanding mainstream program. They came to school regularly, did not present serious behavior problems, and spent as much of reading class and more of math class on task as they had in special education. These students in the mainstream were assigned more opportunities to work with text materials rather than workbooks in reading and spent significantly more reading time in teacher-directed lessions. Nevertheless, the students made no significant progress in reading or math and earned lower grades during the implementation year. The authors suggest that students with learning disabilities will not succeed in the mainstream if teachers continue "business as usual" in mainstream classes.

Achievement↗

PubMed1982

Learning disabled children's syntactic proficiency on a communicative task.

Previous studies have generally examined learning disabled children's syntactic ability either on structured tasks or by analyzing oral language samples collected under conditions not typical of natural communicative settings. Thus, these studies are of limited value in exploring the impact of learning disabled children's deficits in linguistic structure on their use of language in social contexts. The purpose of this study was to investigate learning disabled children's syntactic proficiency during a task requiring them to convey information to a listener. Subjects were selected on the bases of teacher ratings, reading achievement scores, and Peabody Picture Vocabulary Test IQ scores within the normal range; those children identified as learning disabled received low ratings and demonstrated underachievement (below 40th percentile for their grade) in reading. Oral language samples were collected by having learning disabled and normally achieving children in grades two, four, six, and eight participate in a referential communication task in which they described abstract shapes to an experimenter. The length and syntactic complexity of the children's descriptions were assessed. Learning disabled children in all grades were found to produce shorter mean t-units and shorter mean main clauses than nondisabled children even on this relatively simple communicative task. Although learning disabled children's linguistic problems have previously been characterized as subtle, these findings suggest that their productive language deficits may be significant enough to interfere with even the informal and elliptical conversations characteristic of communication among peers and family members.

Adolescent↗

PubMed1985

Ocular anomalies: a comparison of learning disabled and nonlearning disabled elementary school children.

This study compared descriptive data, obtained via retinal reflex photography, concerning ocular anomalies of 439 learning disabled elementary school children, 1657 kindergarten and Grade 1 nonlearning disabled children, and 724 nonlearning disabled children in Grades 2 to 6. Ocular factors included refractive and nonametropic errors as well as severity of the problem. The learning disabled sample had a significantly higher incidence of refractive error than the normal samples in Kindergarten and Grade 1 but lower incidence than the normal sample in Grades 2 to 6. The learning disabled group had a significantly higher incidence of myopia in one or both eyes than did the kindergarten and first grade normal group. No such difference for myopia existed between the learning disabled and the normal sample in Grades 2 to 6. Incidence of hyperopia in both eyes was significantly lower in the learning disabled than in the kindergarten-first grade sample; however, hyperopia in one eye only was greater for the learning disabled than for the older normals. Significant differences between the younger and older normals existed for all types of refractive error except hyperopia in only one eye. Severity of the problem differed significantly between the learning disabled and the kindergarten-first grade sample in the classes of severe and minimal, not at all when comparing learning disabled and older normals, and in all classes when comparing younger and older normals. The learning disabled also had a significantly higher incidence of nonametropic anomalies than did the normal group. Implications relating refractive error and near environment were discussed.

Child↗

PubMedDate not supplied

Toward a scientific pedagogy of learning disabilities: a sameness in the message.

The development of a scientific pedagogy of learning disabilities as called for by Kirk and Bateman (1962) requires the rendering of a science of learning disabilities and a pedagogy derived from that science. But such a pedagogy is necessarily incomplete if it fails to recognize that the structure of the curriculum significantly shapes the act of teaching students identified as learning disabled. The current thinking about curricula is that the universe of information that a curriculum program comprises need only be organized around subject area topics (e.g., mathematics, reading, language arts, science, social studies) and hierarchically arranged in a scope and sequence that has as its main characteristic the general ordering of skills from simple to complex. For all practical purposes, information is viewed as raw material (Kaufman et al., 1990) that can be nominally organized and readily packaged. The information is then consumed as curriculum that requires little or no transformation of its form or structure. The articles in this series of the Journal of Learning Disabilities provide examples of how transforming information by identifying and developing curricula around structural samenesses can lead to a pedagogy that is efficient and effective. The development of a scientific pedagogy of learning disabilities requires that the field acknowledge the importance of curriculum structure and the complexity of information. The field must also examine the intricacies of designing curricula with the same kind of commitment and passion it has demonstrated in the last 30 years in investigating the etiology and organic basis of learning disabilities.(ABSTRACT TRUNCATED AT 250 WORDS)

Achievement↗

PubMed1983

Lateral dominance in children with learning disabilities.

The purpose of the study was to investigate the occurrence of lateral dominance problems in a sample of children with learning disabilities. Ninety-one children (62 boys, 29 girls) who attended a school for children with learning disabilities were selected for the study. The Harris tests of lateral dominance were administered individually, and the children were rated as having right, left, or mixed dominance for hand, eye, and foot. When compared with normative data on dominance in children, the results showed that the occurrence of mixed hand dominance was no more frequent, the occurrence of mixed eye dominance was less frequent, and the occurrence of mixed foot dominance was more frequent in the children with learning disabilities. Results also showed that the occurrence of mixed and crossed eye-hand dominance was significantly different in children with learning disabilities when compared with children without learning disabilities. However, the occurrence of mixed eye-hand dominance was found to be significantly greater in children without learning disabilities than in learning disabled children. Age and sex were not found to affect the occurrence of lateral dominance problems in children with learning disabilities.

Child↗

PubMed1984

Learning disability: 10-year follow-up.

A 10-year follow-up of 114 learning-disabled students has been conducted, gathering information on their academic achievement, social success, and job satisfaction. These students have been compared with 144 siblings without learning disabilities. Significantly lower levels of school attainment, academic success, and social success are found for the learning-disabled group. No difference is found in level of job satisfaction. Significant positive factors contributing to school success in the learning-disabled group were high IQ, less severe learning disability, positive personality characteristics in the child, effective family function, strong family support, high occupational level of family breadwinner, and high education level attained by the mother. Negative factors are a more severe degree of learning disability, the presence of hyperactivity, and a concomitant disability in mathematics.

Adolescent↗

PubMed1990

A descriptive study of adults with suspected learning disabilities.

This article documents a descriptive study of 80 adults considered to have learning disabilities. The study was initiated by the Language and Learning Disabled Adults Task Force in London, Ontario, for the purpose of developing a profile of the self-perceived characteristics and needs of the adult population with learning disabilities in Southwestern Ontario. The study also served as a vehicle for implementation of the Intake Questionnaire, an instrument with potential as a screening device for service agencies working with adults with learning disabilities. A self-referred and agency-referred sample of 80 adults completed the Intake Questionnaire. Data were collected in the areas of demography, education, employment, health, and psychosocial characteristics, aspirations, and cooperation with further testing. Results describe people with ongoing specific problems in education, employment, and psychosocial functioning who aspire to learn more about themselves and their learning disabilities.

Achievement↗

PubMed1991

Methodological issues and learning disabilities diagnosis in clinical populations.

Previous research suggests that the diagnosis of a comorbid learning disability is dependent on the method used for making the LD diagnosis. This study investigated that proposition by studying the effects of using three approaches to the assessment of learning disabilities in a sample of 177 six- to thirteen-year-old boys referred to outpatient mental health clinics for behavior problems. The use of these three procedures to diagnose comorbid learning problems produced significantly different results. All methods identified significant numbers of children in the clinical population as learning disabled; however, each method identified children with differing characteristics. Consistent with predictions from measurement theory, the commonly used simple standard score discrepancy method was more likely to identify children with above-average IQs as learning disabled, whereas a regression approach identified learning disabilities more consistently across the ability range. These results were interpreted as supporting the use of regression approaches to diagnose co-occurring learning disabilities, as that method is less likely to be biased by the child's intelligence test score. The implications of the use of each method in research investigations is also discussed.

Adolescent↗

PubMed1975

Immediate recall fo semantically varied "sentences" by learning-disabled adolescents.

The immediate recall of 20 semantically and syntactically varied sentences was assessed and compared for 30 learning-disabled and 30 academically achieving adolescents. Learning-disabled adolescents repeated significantly fewer of the sentences verbatim than their achieving age peers. They exhibited significant reductions in the recall of sentences which violated semantic (selectional) rules, contained correctly and incorrectly sequenced modifier-strings, contained a random word-setting, or were syntactically complex. Perseveration errors occured more frequently among the learning-disabled adolescents than among the achievers and inter-sentence perseverative errors were exhibited only by those who were learning disabled. The rank order of difficulty for the sentences agreed for the two groups, suggesting primarily quantitative reductions in the immediate recall by the learning-disabled adolescents. The findings suggest that learning-disabled adolescents depend heavily upon semantic aspects for language processing, experience immediate memory and sequencing problems for modifier-strings, and exhibit a prevalence of interfering perseverative responses.

Adolescent↗

PubMed1991

Tactile discrimination, response mode, and interhemispheric communication by learning disabled children.

32 right-handed, learning disabled children aged 8-10 yr., 11-13 yr., and 14-16 yr. were presented a tactile discrimination task. Pairs of fabrics of different or the same texture were presented to the same hand (uncrossed condition) or alternating hands (crossed condition). Discrimination errors were compared using a verbal response mode and a nonverbal response mode. Analysis indicated that the number of crossed errors was significantly greater in the verbal response mode than in the nonverbal response mode for only the youngest children. These results suggest selective attention-activation bias and/or hemispheric processing limitations for younger learning disabled children.

Adolescent↗

PubMed1990

WAIS-R scores as predictors of employment success and failure among adults with learning disabilities.

The transition of adults with learning disabilities to successful employment is contingent upon numerous factors. Eighty-six adults (55 males and 31 females), 18 to 59 years old (mean age 26.7 years), with learning disabilities were evaluated clinically using the Wechsler Adult Intelligence Scale-Revised (WAIS-R) (Wechsler, 1981) to determine the value of WAIS-R IQs and subtest scores in predicting successful employment. Significant relationships were identified between subjects' WAIS-R IQs and scaled scores and job success. Conclusions and recommendations were reported.

Adolescent↗

PubMed1977

Hair element content in learning disabled children.

Hair samples from 31 learning disabled and 22 normal children were analyzed for content of 14 elements. Significant group differences were determined and a discriminant function was completed which separated the groups with 98 per cent accuracy. Elevated lead and cadmium content in the learning disabled group is viewed as being of particular importance.

Cadmium↗

PubMedDate not supplied

The influence of affect on the achievement and behavior of students with learning disabilities.

Research indicates that students with learning disabilities are likely to be at greater risk for experiencing negative affect than their higher achieving counterparts. The purpose of this article is to review recent research on the effects of affect on thoughts, cognition, and behavior. This research finds that induced positive affects leads to more accurate performance on math, greater learning of new vocabulary, and better performance on a new learning task. Implications of and suggestions for follow-up studies of negative and positive affect in students with learning disabilities are presented.

Adolescent↗

PubMed1990

Spelling rule usage among students with learning disabilities and normally achieving students.

Spelling performance of students with learning disabilities (LD) was compared with that of same-age normally achieving subjects and younger normally achieving subjects. Subjects with learning disabilities were divided into two groups: poor readers/poor spellers and good readers/poor spellers. A spelling battery was administered that included one task of phoneme-grapheme correspondence rule usage and four tasks of suffix rule usage. The groups with learning disabilities performed significantly below the same-age normally achieving group on all tasks. No significant differences among the two groups with learning disabilities and their achievement-level peers emerged in primary analyses. However, secondary analyses revealed differences in mastery of the past tense spelling rule ed, and in some subskills related to the spelling of words with suffixes. The cognitive-linguistic significance of these results is discussed.

Child↗

PubMedDate not supplied

Social effects of integrated classrooms and resource room/regular class placements on elementary students with learning disabilities.

The social status of elementary students with learning disabilities (LD) served by the Integrated Classroom Model (ICM) was compared to the social status of elementary students with learning disabilities served in a regular class with resource room support. The ICM serves elementary special education and non-special-education students (1:2) together as one class. The comparison group was composed of students with learning disabilities who received special education services outside of their regular classroom for a portion of their school day. Social status was determined by assessing interpersonal relationships among students, using a peer rating method. The results of analyses of various dimensions suggest that while special education students in both programs have significantly lower social status on average than their non-special-education peers, the children in the ICM have a better opportunity to blend successfully into the classroom than the children who go out to a resource room.

Child↗

PubMed1985

Information processing and speech lateralization in learning-disabled children.

The relationship between information processing and speech lateralization was investigated in learning-disabled children. The Kaufman Assessment Battery for Children (K-ABC) assessed simultaneous and successive processing while a dichotic listening paradigm with free recall and directed attention conditions assessed speech lateralization. A three-factor ANOVA design conducted on the dichotic data revealed that normal children demonstrated stronger right ear advantage (REA); whereas learning-disabled showed weaker right ear advantage. Further, lambda analyses conducted on individual subjects revealed that the learning-disabled did not demonstrate the REA, were not biased attenders, and did not get more right ear than left ear items when attention was directed to one ear. Multiple-regression analysis was used to predict sequential processing from the dichotic data for both groups. Learning-disabled children demonstrated a substantial deficit in sequential processing as compared to normal children. These results indicate that learning-disabled children may not have adequate cerebral lateralization of receptive speech processes, shift their attention more readily, and are more inadequate in sequential processing that presumably subserves language functioning. Perhaps learning-disabled children have deficiencies of processor capacity of salient areas of the left (language) hemisphere.

Attention↗