Bannatyne patterns of Caucasian and Mexican-American learning disabled children

Investigated the measurement properties and practical utility of Bannatyne's (1974) recategorized WISC-R scores. Reliability coefficients, standard deviations, and standard errors of measurement were calculated for the Spatial, Conceptual, and Sequential recategorized scores. These data were utilized to determine how large a difference between each of these scores was needed by individuals in order to reach statistical significance at the.05 and.25 levels. Analyses of the recategorized scores of Caucasian learning disabled children indicated that, as a group, these students were characterized by the Spatial > Conceptual > Sequential pattern which was predicted by Bannatyne (1974). The same was not found to be true for a group of Mexican-American learning disabled children. When the scores of individual children were analyzed, a large majority of both the Caucasian and Mexican-American groups failed to demonstrate the Spatial > Conceptual > Sequential pattern. Implications for using the Bannatyne pattern as a diagnostic tool with learning disabled children are discussed.     

Analysis of cognitive abilities for learning disabled children

The study investigated WISC-R subtest pattern scores of 58 learning disabled children (42 boys and 16 girls) ranging in age from 6 years to 15 years, 10 months. The variation in subtest scores was analyzed by a 1 X 10 analysis of variance with repeated measures on the single factor. Differences between individual subtest means were analyzed by the Newman-Keuls test for simple effects. The evidence indicates that the low subtest scores on Arithmetic, Coding and Information were characteristic of this group. The study did not support the verbal-Performance discrepancies as useful in the diagnosis of learning disabilities.     

Recategorized WISC-R scores of learning disabled children and differential diagnosis

This study analyzed WISC-R profiles along a three-factor approach (Spatial; Verbal-Comprehensive; Attention-Concentration), as suggested by Bannatyne (1968) for purposes of differential diagnosis. The WISC-R profiles of 278 school-verified learning disabled children were compared to those of four other groups: Educable Mentally Impaired (N = 141), Emotionally Impaired (N = 67), Otherwise Impaired (N = 61), and Nonimpaired (N = 294). The total sample was drawn from the State of Michigan public schools. Statistically significant differences were found between the learning disabled group and the other four groups on WISC-R subtest scores. Further analysis revealed that 36% of the learning disabled and 32% of normal children exhibited this WISC-R profile. Analysis of WISC-R profiles of Spatial→Verbal→Attention was not useful in differential diagnosis among the five groups. The results are discussed in terms of the limited utility of a three-factor analysis of WISC-R subtest scores for the purpose of differential diagnosis.     

Recategorized WISC-R scores of learning disabled Navajo Indian children

WISC-R subtest scaled scores for 192 learning disabled Navajo Indian children were recategorized according to the system recommended by Bannatyne (1974), and subsequently analyzed using a one-way repeated measures analysis of variance. A Newman-Keuls Multiple Range Test was also conducted to determine significant pairwise comparisons. Results indicated that, as a group, the subjects failed to demonstrate the Spatial>Conceptual>Sequential pattern predicted by Bannatyne (1974). Implications for use of Bannatyne's system with learning disabled minority children are discussed.     

Programming effects on learning disabled children: Performance and affect

Negative effects of category labels on the attitudes of children as well as the expectations of teachers have been hypothesized but rarely substantiated with empirical data. Forty-five elementary school children identified according to state guidelines as learning disabled were rated by their classroom teachers on academic progress and personal-social adjustment using the Myklebust Pupil Rating Scale. Student attitude toward school was also assessed using the Describe Your School inventory. Learning disabled students receiving special programming were rated significantly better than students identified as learning disabled but not receiving special programming. No differences in attitude toward school were noted. Results suggest that negative effects of labels may be effectively counterbalanced by positive effects of special programming.     

A study of handwriting in written stories of normal and learning disabled children

Written stories of normally achieving and learning disabled children in grades one through three were compared, using a Handwriting Evaluation Scale designed for this study. The subjects also were given tests for receptive language, figure copying and spelling. The Non-LD and LD groups differed on figure copying, spelling and written productivity, but not receptive language. The Non-LD grade level groups differed significantly on two components of the handwriting scale (Letter Size and Control), while the LD grade level groups differed on three components (Letter Formation, Alignment and Spacing, and Letter Size). The most pronounced differences between the LD and normally achieving children were on Formation and Size. A separate analysis of the third grade stories revealed that handwriting was less related to productivity than spelling and visual-motor skills. Nevertheless, the results indicated that many LD students have weak visual-spatial-motor skills. Implications for intervention are discussed.     

WISC-R factor structures for diagnosed learning disabled Navajo and Papago children

WISC-R factor structures (Principal Factor Analysis-Varimax rotation) were compared for previously diagnosed samples of learning disabled Navajo and Papago children. Both two- and three-factor solutions were analyzed, utilizing coefficients of congruence. Both groups were similar in terms of proportion of common factor variance accounted for by a general factor, and the Verbal-Performance distinction was demonstrated in both groups.     

WISC-R patterns for learning disabled children at three SES levels

WISC-R and socioeconomic status (SES) data were collected on 122 learning disabled (LD) children who had been assigned to self-contained LD classrooms. The children were divided into three groups on the basis of family SES: high, middle, and low. Three questions were explored: (a) Is there a relationship between SES and IQ test scores among LD-labeled children? (b) Is the pattern of subtest scores independent of SES level? (c) Is the Verbal-Performance IQ test score discrepancy independent of SES level? Results supported affirmative answers to all three questions. Discussion centered around the implications of these results for future research on the utility of the WISC-R for diagnostic purposes.     

The development of working memory in normally achieving and subtypes of learning disabled children

Working memory has been proposed as an important component of reading and arithmetic skills. The development of working memory was studied in normally achieving and subtypes of learning disabled children. The performance of reading disabled (RD), arithmetic disabled (ARITHD), and attentional deficit disordered (ADD) children, age 7-13, was compared to normal achievers (NA) on 2 working memory tasks, 1 involving sentences and the other involving counting. There was a significant growth of working memory as a function of age. In addition, the RD children had significantly lower scores on both tasks. The ARITHD children had significantly lower scores only on the Working Memory--Counting task, and the ADD group had scores similar to the normally achieving children except at the youngest age level in the Working Memory--Sentences task. Thus, a reading disability appears to involve a generalized deficit in working memory. Children with an arithmetic disability do not have a generalized language deficit but have a specific working memory deficit in relation to processing numerical information. As children with ADD did not have deficits in these tasks, working memory may not have significant attentional components. An important component of the development of reading and computational arithmetic skills appears to be the growth of working memory for language and numerical information.