Assessment of visual-motor disabilities in young children: Toward differential diagnosis

This study sought to determine if the nature of disability (visual, motor, or both) could be diagnosed for children with visual-motor integration disabilities and to determine methods by which appropriate diagnoses could be made. A total of 104 children aged 6 and 7 were selected for having Bender Visual-Motor Gestalt Test performance below average for their age. The Motor-Free Visual Perception Test and the Southern California Motor Accuracy Test were then administered to the children, and subgroups were identified who demonstrated no visual disabilities and/or no motor disabilities. These results were seen as supporting the existence of semiautonomous visual and motor systems. Using multiple regression analyses, the types of errors of reproduction, time to completion, and behavioral observations from the Bender Test were considered as predictors of visual perception and motor accuracy. Analyses were performed for the two age groups and two criterion variables separately. The number of integration errors was found to be the only significant predictor of both visual perception and motor accuracy for the six-year-old group and accounted for less than 15% of the variance in each criterion variable. Number of integration errors and the frequency of tracing the design with the finger were found to be significant predictors for the seven-year-old group and accounted for about 22% of the variance. There were no significant predictors of motor accuracy for the seven-year-old group. It was concluded that there is a need for differential diagnosis of visual vs. motor disabilities and for further investigations to determine valid methods. Suggestions for assessment and future research included use of clinical limits-testing procedures, development and refinement of test instruments, and consideration of additional variables in predicting visual perceptual and motor expressive ability.     

Auditory and visual factors related to spelling success

Compared good and poor spellers at the third- and sixth-grade levels on seven tasks that measured visual and auditory discrimination, memory, analysis and synthesis skills. The results indicated that five tasks discriminated between good and poor spellers at the third-grade level: tasks requiring visual discrimination and visual memory of words; auditory discrimination, memory, analysis and synthesis; and auditory-visual integration. Two tasks discriminated between good and poor spellers at the sixth-grade level: tasks requiring auditory discrimination, memory, analysis and synthesis; and auditory-visual integration. Memory for words and sentences did not discriminate between good and poor spellers at either grade level.     

The Relations Between Early Working Memory Abilities and Later Developing Reading Skills: A Longitudinal Study From Kindergarten to Fifth Grade

This study investigated the relations of early working‐memory abilities (phonological and visual‐spatial short‐term memory [STM] and complex memory and episodic buffer memory) and later developing reading skills. Sixty Hebrew‐speaking children were followed from kindergarten through Grade 5. Working memory was tested in kindergarten and reading in Grades 1, 2, and 5. All memory measures, but phonological STM, correlated with reading up to Grade 5. Regression analyses (with intelligence quotient controlled) demonstrated that phonological complex memory predicted all reading skills in Grade 1, and accuracy in Grade 2. The rather understudied visual‐spatial memory predicted comprehension in Grades 2 (STM) and 5 (complex memory). The results point to an important role of the phonological complex memory in early assessment, and suggest a long‐lasting role of early visual‐spatial memory in predicting variance in reading. Whether this role of the visual‐spatial memory is unique to the Hebrew orthography because of its visual features requires, however, further investigation.     

The effects of bilingualism on learning to read English: evidence from the contrast between Urdu‐English bilingual and English monolingual children

Learning to read in a shallow alphabetic orthography such as Urdu may depend primarily on phonological processing skills, whilst learning to read in a deeper orthography, such as English, may place more reliance on visual processing skills. This study explores the effects of Urdu on the acquisition of English literacy skills by comparing the reading, memory and phonological processing skills of bilingual Urdu‐English and monolingual English children (7–8 years). The bilingual children had more difficulty in reading irregular English words, but were better at reading regular words and nonwords compared to the monolinguals. The poor performance of the bilingual children with irregular English words was linked to their poor visual memory skills, whilst their good performance with regular words and nonwords was related to the presence of enhanced phonological skills. The results demonstrate the transfer of first language skills to reading development in a second language. In English, first language skills can facilitate the development of either lexical or non‐lexical routes to reading.     

Phonological,visual and temporal processing in adults with and without reading disability

The primary goal of this study was to comparethree theoretical accounts of readingdisability (RD) by simultaneously studyingphonological, visual, and temporal processingskills. Adults with and without RD werecompared on measures of phonological processingwith the Auditory Analysis Test (AAT) and theWoodcock Reading Mastery Test (WRMT-R) WordAttack subtest. Visual processing was assessedwith the Useful Field of View test (UFOV®)and the Frequency Doubling Technology Perimeter(FDT). The Repetition Test was used toevaluate temporal processing skills. Adultswith RD evidenced poorer phonological andtemporal processing skills than did adultswithout RD, but no significant differencesbetween the groups were found in visualprocessing. Future research is needed toclarify the relations among phonological,visual, and temporal skills and the roles theyplay in RD. The trajectory and co-existence ofdeficits throughout development, as well as howspecifically such impairments affect reading,warrant further investigation.     

Visual Sequential Memory and Spelling Ability

Although good visual memory is frequently cited as an essential requirement for competent spelling, there is little empirical evidence to support this. In this paper visual sequential memory was studied in two separate controlled experiments which compared the test performances of 13‐year‐old poor spellers and controls. Test materials were carefully designed to obtain a measure of visual memory with minimal interference from verbal coding. With the variable of IQ controlled for, visual memory did not appear to differentiate between the groups unless mediated by verbal coding.     

Behind mathematical learning disabilities: What about visual perception and motor skills?

In a sample of 39 children with mathematical learning disabilities (MLD) and 106 typically developing controls belonging to three control groups of three different ages, we found that visual perception, motor skills and visual-motor integration explained a substantial proportion of the variance in either number fact retrieval or procedural calculation. Furthermore, children with MLD performed significantly worse on visual perception, motor skills and visual-motor integration in comparison with age-matched control children. A mild developmental delay in visual perception, visual-motor integration and (fine) motor coordination and a severe delay in motor skills were found in children with MLD. However, not all children with MLD have problems on these domains. They seem to be a heterogeneous group, not only with respect to their mathematical profile but also with respect to their visual perceptual, motor and visual-motor integration skills. Diagnostic implications are discussed.     

Developmental skills of advantaged and disadvantaged children on perceptual tasks

The Bender Visual-Motor Gestalt Test (BVMGT), Rutgers Drawing Test (RDT), Memory-for-Designs (M-F-D), a visuo-spatial memory test (Bannatyne, 1968), and selected motor tasks (Bannatyne, 1965) were administered to 155 advantaged and disadvantaged children. First- and second-grade advantaged children were superior on all of the visual-motor, visual-motor memory, and visual memory, and visual memory tasks. On the motor tasks, first-grade advantaged children were superior on Gross Rhythm (p < .01), and Throws (p < .01). Second-grade advantaged children were superior on Crosses (p < .01), and Throws (p < .01). Disadvantaged first- and second-graders, however, were superior on Touchings (p < .01). The results are discussed in terms of differential perceptual-motor and motor growth and the need to structure educational experience that will contribute to this growth.     

Developmental associations between verbal and visual short-term memory and the acquisition of decoding skill

This study longitudinally investigated the relationships between verbaland visual short-term memory (STM) and the acquisition of decoding from thepre-reading through the early acquisition stages in 63 Hebrew-speakingchildren Test waves occurred in kindergarten, first grade and second grade.IQ, visual and verbal STM and decoding ability were assessed. The dataindicated that while both verbal and visual STM in kindergarten were significantlycorrelated to later decoding skill, pre-reading visual STM was a stronger predictor.The results further showed that pre-reading performance on the WISC-R BlockDesign test predicted later decoding ability, while performance on theWISC-R Vocabulary test did not. Lastly decoding skill in grade 1 was foundto predict only visual in grade 2. These results indicate that visualparameters may make a crucial contribution to the acquisition of decodingskills. The size of pre-reading visual STM capacity appears to play a rolein this process. The relationship between visual STM and decoding may bebidirectional, as learning to decode appears to develop visual STM. It issuggested that either language-related or task-related factors may accountfor these counter-to-mainstream results.     

Predicting early school success with developmental and social skills screeners

The purpose of this study was to identify developmental, social skill, and problem behavior sub-domains that best predict academic achievement and grade promotion or retention in the early school years. Subjects were 184 children tested at the end of kindergarten using the Early Prevention of School Failure screening package and the Social Skills Rating Scale, and a year later using the Stanford Achievement Test. Information on promotion or retention was gathered in late spring for the two school years. Four kindergarten screening areas figured prominently in predicting first grade academic success: receptive language, visual memory, cooperation, and self-control. In addition, social skill subscales played significant roles in predicting promotion and retention. The findings suggest that assessment of social skills should be included in kindergarten screening packages with the possibility of targeting deficits for early intervention. © 1997 John Wiley & Sons, Inc.     

Cognitive constraints and the early learning goals in writing

This study examined the relative importance of a number of cognitive factors (i.e. working memory, vocabulary knowledge, general cognitive ability and reading skills) in accounting for differences in the rate of progress made by children in the development of emergent writing skills. Sixty-seven children were assessed on tasks measuring the visuospatial, phonological and central executive components of working memory. The children's written texts were analysed according to the assessment scale for writing from the Early Years Foundation Stage Profile. The results indicate that reading performance and visuospatial memory skills are crucial to determining whether or not children aged 4–5 years are able to meet the UK government's prescribed educational standards for writing. The importance of visual skills in the acquisition of orthographic knowledge and writing conventions gained through reading is discussed in relation to current instructional strategies within schools.     

The Superiority of Distributed Practice in Drill in Arithmetic

Abstract

Forty-three second and third grade non-readers who were diagnosed as having visual perceptual deficiencies were randomly assigned to experimental and control groups. The experimental group received training in visual analysis, which included visual short-term memory, visual discrimination of letters and words, and remedial instruction. The control group received only remedial instruction. After seven months, there was no significant difference between the groups in visual perception or achievement of reading skills. However, there was a significant mean difference between pretest and posttest scores for both groups on all measures tested. Experimental subjects gained 8.9 months in reading achievement versus 9.2 months for controls, indicating that visual discrimination and visual memory of word training influenced the achievement of reading skills for this group to the same degree as did a remedial program without visual training.     

Visual Skills and Chinese Reading Acquisition: A Meta-analysis of Correlation Evidence

This paper used meta-analysis to synthesize the relation between visual skills and Chinese reading acquisition based on the empirical results from 34 studies published from 1991 to 2011. We obtained 234 correlation coefficients from 64 independent samples, with a total of 5,395 participants. The meta-analysis revealed that visual skills as a global construct had a medium correlation effect size (r?=?0.32) associated with Chinese reading acquisition. The various visual processing skills differed in their relation to Chinese reading acquisition in different stages. Visual perception, speed of processing visual information, and pure visual memory had low-to-moderate correlations with Chinese reading acquisition in the lower grades (i.e., below second grade), whereas these relations did not retain their magnitude for children in the higher grades (i.e., second through sixth grades). By contrast, visual–verbal association skill was found to account for 34 and 41 % of the variance in children’s Chinese reading acquisition in both lower and higher grade levels, respectively. Greater attention to this construct can significantly benefit reading research and instructional practice. No regional differences between studies in Mainland China and Hong Kong were found in the meta-analysis.     

Poor performance on serial visual tasks in persons with reading disabilities: impaired working memory?

The present study investigates the performance of persons with reading disabilities (PRD) on a variety of sequential visual-comparison tasks that have different working-memory requirements. In addition, mediating relationships between the sequential comparison process and attention and memory skills were looked for. Our findings suggest that PRD perform worse than normally achieving readers (NAR) when the task requires more than a minimal amount of working memory, unrelated to presentation rate. We also demonstrate high correlations between performance on the task with the most working-memory demands and reading-related skills, suggesting that poor working-memory abilities may be one of the underlying mechanisms of dyslexia. The mediating model analysis indicates that order judgment tasks are mediating to verbal working memory, suggesting that visual sequence memory precedes auditory sequence memory. We further suggest that visual tasks involving sequential comparisons could probe for poor working memory in PRD.     

The cognitive profile of adult dyslexics and its relation to their reading abilities

The question of which cognitive impairments are primarily associated with dyslexia has been a source of continuous debate. This study examined the cognitive profile of Hebrew-speaking compensated adult dyslexics and investigated whether their cognitive abilities accounted for a unique variance in their reading performance. Sixty-nine young adults with and without dyslexia were administered a battery of tests measuring their reading skills and a number of cognitive abilities. The dyslexics were found to exhibit a generally poor cognitive profile, including their attention, visual working memory, naming, visual perception and speed of processing abilities, with the exception of high executive functions skills. Furthermore, naming speed, visual working memory and attention were significantly associated with decoding and fluency measures and predicted group difference after controlling for phonological skills. The findings point to the contribution of cognitive factors to decoding rate and possibly to the ability of utilizing rapid orthographic processes, thus effecting dyslexics’ reading performance.     

The influence of imaging capacity on visual art skills

Imaging is a component of fundamental cognitive processes employed in a variety of cognitive activities. In particular, imaging is of special relevance to artistic skills. As part of our research on the relationships between mental images and the plastic arts, the influence of the imaging capacity in the visual art skills was investigated. Seventy-two fine arts students were administered the Vividness Of Visual Imagery Test and performed tasks testing spatial skill, spatial manipulation skill, and visual memory. Imaging capacity was associated with all three-task scores. We also found that women were more proficient in spatial tasks and spatial manipulation tasks than men. These results lead us to consider future studies with other tests of imaging capacity, with the aim of confirming and generalizing the relation between mental imagery and artistic skills. If the ability to create mental images is connected to artistic skill one would have to take this into account in the teaching of art and in designing programmes for mental image training.     

Developmental dyslexia: exploring how much phonological and visual attention span disorders are linked to simultaneous auditory processing deficits

The simultaneous auditory processing skills of 17 dyslexic children and 17 skilled readers were measured using a dichotic listening task. Results showed that the dyslexic children exhibited difficulties reporting syllabic material when presented simultaneously. As a measure of simultaneous visual processing, visual attention span skills were assessed in the dyslexic children. We presented the dyslexic children with a phonological short-term memory task and a phonemic awareness task to quantify their phonological skills. Visual attention spans correlated positively with individual scores obtained on the dichotic listening task while phonological skills did not correlate with either dichotic scores or visual attention span measures. Moreover, all the dyslexic children with a dichotic listening deficit showed a simultaneous visual processing deficit, and a substantial number of dyslexic children exhibited phonological processing deficits whether or not they exhibited low dichotic listening scores. These findings suggest that processing simultaneous auditory stimuli may be impaired in dyslexic children regardless of phonological processing difficulties and be linked to similar problems in the visual modality.     

The Effect of Urdu Vocabulary Size on the Acquisition of Single Word Reading in English

The purpose of this study was to examine the effects of Urdu, a phonologically transparent orthography with regular letter-sound correspondences on the development of reading in English. The results showed that children who had high levels of vocabulary knowledge and phonological awareness in Urdu, were more likely to perform well on English reading and reading related tasks, but poorly on visual memory tasks. In contrast, children who had some Urdu word recognition skills, but low levels of Urdu vocabulary knowledge and Urdu phonological awareness tended to perform poorly on English reading and reading related tasks, but better on visual memory tasks. The findings provide further support to the direct impact of Urdu on single word reading in English.     

Developing Greek Primary School Students’ Critical Thinking through an Approach of Teaching Science which Incorporates Aspects of History of Science

In this paper, the development of sixth grade students’ critical thinking skills in science courses is discussed relatively to the contribution of the integration of aspects of History of Science into instruction. Towards this direction a project on electromagnetism was designed and implemented aiming to engage primary school students in a critical examination of knowledge (importance, complexity and human implications) by generating argumentation and discussion in their classrooms. The “Test of Everyday Reasoning (TER)”, which targets the core critical thinking skills identified in “The Delphi Report” consensus, was translated and standardized for the Greek population in order to be used for the project’s assessment. A pre-post analysis was conducted for the experimental group and the control group. The encouraging results regarding critical thinking skills development are supportive to the integration of aspects of History of Science in science courses.