bluuebunny/crossref_metadata_2025 huggingface dataset:
Students Classified as LD Who Received Course Substitutions for the College Foreign Language Requirement
Authors: Sparks Richard L. , Philips Lois G. , Javorsky James
Published: December 2007

This replication study examined whether 158 college students classified as learning disabled (LD) who were granted course substitutions for the foreign language (FL) requirement would display significant cognitive and academic achievement differences when grouped by levels of IQ—achievement and achievement—achievement discrepancy and by level of performance on an FL aptitude test ( Modern Language Aptitude Test; MLAT), phonological/orthographic processing measures, and in FL courses. The results showed that there were few differences among groups with differing levels of IQ—achievement or achievement—achievement discrepancy (i.e., < 1.0 SD, 1.0—1.49 SD, and > 1.50 SD) on MLAT and American College Testing (ACT) scores, graduating grade point average (GPA), or college FL GPA. The results also showed that between groups who scored at or above versus below the 15th percentile (i.e., < 1.0 SD) on the MLAT, there were no differences on measures of graduating GPA, college FL GPA, native language skill, ACT score, and Verbal IQ. Demographic findings showed that 44% of these petition students met a minimum IQ—achievement discrepancy criterion (≥ 1.0 SD) for classification as LD. These findings suggest that many traditional assumptions about LD and FL learning are likely to be false.
Psychometric Stability of Nationally Normed and Experimental Decoding and Related Measures in Children with Reading Disability
Authors: Cirino Paul T. , Rashid Fontina L. , Sevcik Rose A. , Lovett Maureen W. , Frijters Jan C. , Wolf Maryanne , Morris Robin D.
Published: December 2007

Achievement and cognitive tests are used extensively in the diagnosis and educational placement of children with reading disabilities (RD). Moreover, research on scholastic interventions often requires repeat testing and information on practice effects. Little is known, however, about the test—retest and other psychometric properties of many commonly used measures within the beginning reader population, nor are these nationally normed or experimental measures comparatively evaluated. This study examined the test—retest reliability, practice effects, and relations among a number of nationally normed measures of word identification and spelling and experimental measures of achievement and reading-related cognitive processing tests in young children with significant RD. Reliability was adequate for most tests, although lower than might be ideal on a few measures when there was a lengthy test—retest interval or with the reduced behavioral variability that can be seen in groups of beginning readers. Practice effects were minimal. There were strong relations between nationally normed measures of decoding and spelling and their experimental counterparts and with most measures of reading-related cognitive processes. The implications for the use of such tests in treatment studies that focus on beginning readers are discussed.
Temporal Resolution of Auditory Perception and Verbal Working Memory in 15 Children with Language Impairment
Authors: Norrelgen Fritjof , Lacerda Francisco , Forssberg Hans
Published: December 2007

We investigated temporal resolution of auditory perception (TRAP), verbal working memory, and speech perception in 15 children with language impairment (LI) in comparison with a control group of 99 typical children. A computerized two-choice test was used to assess these three abilities. No deficits in TRAP were found in the LI group, and the thresholds were similar for both study groups. It was interesting that the variability was high for both groups and that the control group's performance was poorer than reported in some previously published studies. There were significant differences in the two groups' performance on speech perception and verbal working memory. Working memory was the most sensitive of these two measures.
Effectiveness of a School-Based Multicomponent Program for the Treatment of Children with ADHD
Authors: Miranda Ana , Presentación Maria Jesús , Soriano Manuel
Published: December 2007

The objective of this study was to evaluate the efficacy of a multicomponent program for treating attention-deficit/hyperactivity disorder (ADHD) carried out by teachers in a classroom context. Dependent measures included neuropsychological tasks, behavioral rating scales for parents and teachers, direct observation of behavior in the classroom, and academic records of children with ADHD. Fifty children with ADHD participated in the study. The teachers of 29 of the 50 students were trained in the use of behavior modification techniques, cognitive behavior strategies, and instructional management strategies. The other 21 students formed the control group. Parents' and teachers'ratings detected improvements in primary symptoms (inattention—disorganization, hyperactivity—impulsivity) and in behavioral difficulties usually associated with ADHD (e.g., antisocial behavior, psychopathological disorders, anxiety). Furthermore, the results showed increased academic scores, enhanced classroom behavioral observations, and improved teachers' knowledge about the strategies directed toward responding to the children's educational needs.
Gender Bias in IQ-Discrepancy and Post-Discrepancy Definitions of Reading Disability
Authors: Share David L. , Silva Phil A.
Published: December 2007

The present study investigated the hypothesis that the higher prevalence of reading disability (RD) often observed among boys is partly an artifact of gender bias in the prediction of reading from IQ. The relevant regression statistics derived from a sample of more than 900 children revealed a statistically significant intercept bias. Predicted reading scores for boys were systematically overestimated, thereby inflating IQ—reading discrepancies; the converse was found for girls. When defined separately for girls and boys, severe underachievement in reading was found to be equally prevalent in both genders and, furthermore, was associated with qualitatively and quantitatively similar patterns of deficits. Because the bias arose from general differences between boys and girls in reading score distributions (a lower mean and greater variance for boys) rather than from differences in IQ scores, gender bias poses a potential threat not only to traditional IQ-discrepancy definitions but also to post-discrepancy definitions that are based solely on reading score cutoffs. Future classification criteria for RD need to take heed of the possibility that when the distributions of reading scores for boys and girls are not identical, performance cutoffs designating low achievement that are based on data pooled from both genders are likely to result in the overidentification of boys with RD and the underidentification of girls with RD.
The Relationship Between IQ and Reading Disabilities in English-Speaking Canadian and Spanish Children
Authors: Jimenez Juan E. , Siegel Linda S. , Rodrigo Lopez Mercedes
Published: December 2007

This study was designed to examine the role of intelligence (IQ) in the definition of reading disabilities (RD) in languages with different orthographic systems. A sample of 94 Spanish children and 157 English-speaking Canadian children with RD was classified into four groups on the basis of IQ scores from the Wechsler Intelligence Scale for Children—Revised (< 80; 81—90; 91—109; 110—140). We examined the reading and spelling skills of Canadian and Spanish children as a function of Full Scale, Verbal, and Performance IQ scores. Significant differences between the languages were found when reading performance was analyzed as a function of Verbal IQ scores, in that there were some differences between the groups of Canadian children with RD but not between the groups of Spanish children. The Canadian children with Verbal IQ scores < 80 demonstrated relatively lower performance in reading and spelling skills than the Canadian groups with higher IQ scores. There were differences in reading tasks as a function of Performance IQ in English but not in Spanish. The differences in the role of IQ as a function of orthographic systems may relate to the greater significance of visual—orthographic as opposed to phonological processing in English.
Predicting Response to Early Reading Intervention From Verbal IQ, Reading-Related Language Abilities, Attention Ratings, and Verbal IQ—Word Reading Discrepancy
Authors: Stage Scott A. , Abbott Robert D. , Jenkins Joseph R. , Berninger Virginia W.
Published: December 2007

Additional analyses of a previously published study addressed three questions about growth in word reading during early reading intervention: (1) How well do Verbal IQ, reading-related language abilities (phonological, rapid naming, and orthographic), and attention ratings predict reading growth? (2) How well do language deficits predict reading growth? and (3) How well does Verbal IQ—word reading discrepancy predict reading growth? Univariate analyses showed that Verbal IQ, phonological skills, orthographic skills, rapid automatized naming (RAN), and attention ratings predicted the response to early intervention, but multivariate analyses based on a combination of predictors for real-word reading and pseudoword reading showed that Verbal IQ was not the best unique predictor. Students with double or triple deficits in language skills (RAN, phonological, and orthographic processing) responded more slowly to early intervention than students without language deficits. Verbal IQ—word reading discrepancy did not predict the response to early intervention in reading. Overall results supported the use of reading-related language and attention measures rather than IQ—achievement discrepancy in identifying candidates for early reading intervention.
Do the Effects of Computer-Assisted Practice Differ for Children with Reading Disabilities With and Without IQ—Achievement Discrepancy?
Authors: Jimenez Juan E. , del Rosario Ortiz Maria , Rodrigo Mercedes , Hernandez-Valle Isabel , Ramirez Gustavo , Estevez Adelina , O'Shanahan Isabel , de la Luz Trabaue Maria
Published: December 2007

This study was designed to assess whether the effects of computer-assisted practice on visual word recognition differed for children with reading disabilities (RD) with or without aptitude—achievement discrepancy. A sample of 73 Spanish children with low reading performance was selected using the discrepancy method, based on a standard score comparison (i.e., the difference between IQ and achievement standard scores). The sample was classified into three groups: (1) a group of 14 children with dyslexia (age M = 103.85 months; SD = 8.45) who received computer-based reading practice; (2) a group of 31 “garden-variety” (GV) poor readers (age M = 107.06 months; SD = 6.75) who received the same type of instruction; and (3) a group of 28 children with low reading performance (age M = 103.33 months; SD = 9.04) who did not receive computer-assisted practice. Children were pre- and posttested in word recognition, reading comprehension, phonological awareness, and visual and phonological tasks. The results indicated that both computer-assisted intervention groups showed improved word recognition compared to the control group. Nevertheless, children with dyslexia had more difficulties than GV poor readers during computer-based word reading under conditions that required extensive phonological computation, because their performance was more affected by low-frequency words and long words. In conclusion, we did not find empirical evidence in favor of the IQ—achievement discrepancy definition of reading disability, because IQ did not differentially predict treatment outcomes.
Cognitive Functioning as Measured by the WISC-R
Authors: D'Angiulli Amedeo , Siegel Linda S.
Published: December 2007

Patterns of performance on the Wechsler Intelligence Scale for Children—Revised (WISC-R) have been proposed as useful tools for the identification of children with learning disabilities (LD). However, most of the studies of WISC-R patterns in children with LD have been plagued by the lack of a typically achieving comparison group, by failure to measure individual patterns, and by the lack of a precise definition of LD. In an attempt to address these flaws and to assess the presence of patterns of performance on the WISC-R, we examined data from 121 children with typical achievement (TA), 143 children with reading disabilities (RD), and 100 children with a specific arithmetic disability (AD), ages 6 to 16 years. The results indicated that the RD and AD groups had significantly lower scores than the TA group on all the Verbal IQ subtests. Many of the children with AD and RD showed a significant difference between Verbal and Performance IQ scores, but so did many of the typically achieving children. Although there were some children with LD who showed the predicted patterns, typically, 65% or more of the children with LD did not. Furthermore, a proportion of the TA group—generally not significantly smaller than that of the RD and AD groups—showed discrepancy patterns as well. Our results indicate that the patterns of performance on intelligence tests are not reliable enough for the diagnosis of LD in individual children. Therefore, it might be more profitable to base the detection of an individual's LD on patterns of achievement test scores.
The Role of Environment in the Development of Reading Skills
Authors: Molfese Victoria J. , Modglin Arlene , Molfese Dennis L.
Published: December 2007

The purpose of this study was to extend previous studies on the influence of environmental measures on intelligence scores by examining how proximal and distal measures of children's environments in the preschool period and in the primary-grade period are related to their performance on reading achievement tests. Reading performance was explored using two approaches. The first approach involved the identification of children within a longitudinal sample who had poor reading skills at 8 years of age. The second approach used the full range of reading scores to explore whether factors influencing poor reading were different from those influencing good reading. Participants were 113 children, including 35 children with poor reading skills, who were part of a longitudinal study of cognitive development. Socioeconomic status (SES), Home Observation for Measurement of the Environment (HOME) scores at 3 and 10 years of age, and school-administered and individually administered reading achievement scores were obtained. Both SES and HOME scores were found to be related to reading abilities, but preschool environment measures were more strongly and consistently related to and predictive of reading scores. Differences in the patterns of correlations and the results of the predictive models were found between the full sample and the poor readers. Variables other than proximal and distal measures of the environment are involved in the development of reading skills.
Clinical Importance of Parent Ratings of Everyday Cognitive Abilities in Children with Learning and Attention Problems
Authors: Dewey Deborah , Crawford Susan G. , Kaplan Bonnie J.
Published: December 2007

This study addressed two issues: first, whether parental reports contribute information over and above a standardized psychometric assessment, and second, whether parental reports of everyday cognitive functioning might be useful in distinguishing between children with reading disabilities (RD), attention-deficit/hyperactivity disorder (ADHD), and combined ADHD + RD. Parent-reported information on 159 children with learning or attention problems was obtained using a questionnaire called the Parent Ratings of Everyday Cognitive and Academic Abilities (PRECAA). Psychometric information used for comparison included the Woodcock-Johnson Psychoeducational Battery—Revised, the Bruininks-Oseretsky Test of Motor Proficiency—Short Form, the Vocabulary and Block Design subtests of the Wechsler Intelligence Scale for Children, 3rd edition, and the Developmental Test of Visual—Motor Integration. The PRECAA was found to be sensitive to group differences between children with RD and children with ADHD and combined ADHD + RD. Its inclusion resulted in a significant increase in the number of children correctly classified compared to the use of psychometric measures alone. The PRECAA correctly classified more children (66%) than did the standard psychometric measures (50%). In fact, a very high percentage of children with ADHD (81%) were correctly classified using the PRECAA. These findings suggest that the PRECAA may be a useful aid to clinicians in the identification of children with learning and attention problems.
For Which Students with Learning Disabilities Are Self-Concept Interventions Effective?
Authors: Elbaum Batya , Vaughn Sharon
Published: December 2007

We have previously conducted a meta-analysis of outcomes of school-based interventions aimed at enhancing the self-concept of students with learning disabilities (LD). This study extends the previous findings by analyzing intervention effect sizes in relation to students' levels of self-concept prior to intervention. The results of these analyses indicated that only groups of students with documented low self-concept benefited significantly from intervention. For these students, intervention effects were much larger than the effects previously estimated from aggregations that included groups with wide-ranging or unknown levels of self-concept prior to intervention. These findings underscore the need for researchers and practitioners to identify students for self-concept intervention based on their documented need, rather than assuming a need based on the students' identification as students with LD.
Teaching Expressive Writing to Students with Learning Disabilities
Authors: Baker Scott , Gersten Russell , Graham Steve
Published: December 2007

This article presents research-based examples of effective instructional approaches for improving the quality of the content of stories and essays written by students with learning disabilities. We also describe recent research on handwriting and spelling (transcription skills) and show how instruction in these areas affects overall writing quality. Examples of instructional approaches that improve writing quality are taken from experimental studies included in a recent meta-analysis by Gersten and Baker (2001) conducted on writing intervention research. A common goal in these studies was to teach students with learning disabilities how to organize writing tasks, generate ideas about the writing topics, and produce final written products that were coherent and organized. In this article, our goal is to illustrate how findings from these studies can be implemented in both general and special education settings.
Instructing Adolescents with Learning Disabilities
Authors: Swanson H. Lee , Deshler Donald
Published: December 2007

A previous meta-analysis indicated that eight instructional factors—Questioning, Sequencing and Segmentation, Skill Modeling, Organization and Explicit Practice, Small-Group Setting, Indirect Teacher Activities (e.g., homework), Technology, and Scaffolding—captured the majority of successful intervention programs for adolescents with learning disabilities (LD). Most important was the Organization/Explicit factor, which contributed significant variance (16%) to effect size. This factor included two important instructional components : advance organization and explicit practice. In this article, we convert these findings into practical guidelines to direct instructional practice.
Writing Instruction in Kindergarten
Authors: Edwards Lana
Published: December 2007

This review examines the literature on how to teach kindergarten children with reading and writing difficulties how to write. Specifically, research on handwriting instruction, spelling instruction, and composition writing is discussed. Due to the limited number of empirical studies on writing that included kindergarten students with diagnosed reading and writing difficulties, selected studies conducted with the full range of kindergarten children, as well as studies conducted in the early elementary grades, are presented to highlight future directions for research.
Subgrouping Poor Readers on the Basis of Individual Differences in Reading-Related Abilities
Authors: Catts Hugh W. , Hogan Tiffany P. , Fey Marc E.
Published: December 2007

The present study investigated the use of the Reading Component Model to subgroup poor readers. A large sample of poor readers was identified in second grade and subgrouped on the basis of relative strengths and weaknesses in word recognition and listening comprehension. Although homogeneous subgroups were not identified, poor readers could be classified into four subgroups that differed significantly in reading-related abilities. Further analyses showed that poor readers' strengths and weaknesses in listening comprehension, and to a lesser extent in word recognition, were foreshadowed by their abilities on related kindergarten measures. Follow-up testing in the fourth grade indicated that poor readers' individual differences in word recognition and listening comprehension were consistent and that subgroups were moderately stable. The implications of these results for the assessment and remediation of reading disabilities are discussed.
Sensory, Cognitive, and Linguistic Factors in the Early Academic Performance of Elementary School Children
Authors: Watson Charles S. , Kidd Gary R. , Horner Douglas G. , Connell Phil J. , Lowther Andrya , Eddins David A. , Krueger Glenn , Goss David A. , Rainey Bill B. , Gospel Mary D. , Watson Betty U.
Published: December 2007

Standardized sensory, perceptual, linguistic, intellectual, and cognitive tests were administered to 470 children, approximately 96% of the students entering the first grade in the four elementary schools of Benton County, Indiana, over a 3-year period (1995-1997). The results of 36 tests and subtests administered to entering first graders were well described by a 4-factor solution. These factors and the tests that loaded most heavily on them were reading-related skills (phonological awareness, letter and word identification); visual cognition (visual perceptual abilities, spatial perception, visual memory); verbal cognition (language development, vocabulary, verbal concepts); and speech processing (the ability to understand speech under difficult listening conditions). A cluster analysis identified 9 groups of children, each with a different profile of scores on the 4 factors. Within these groups, the proportion of students with unsatisfactory reading achievement in the first 2 years of elementary school (as reflected in teacher-assigned grades) varied from 3% to 40%. The profiles of factor scores demonstrated the primary influence of the reading-related skills factor on reading achievement and also on other areas of academic performance. The second strongest predictor of reading and mathematics grades was the visual cognition factor, followed by the verbal cognition factor. The speech processing factor was the weakest predictor of academic achievement, accounting for less than 1% of the variance in reading achievement. This project was a collaborative effort of the Benton Community School Corporation and a multidisciplinary group of investigators from Indiana University.
Naming Difficulties in Children with Dyslexia
Authors: Faust Miriam , Dimitrovsky Lilly , Shacht Tamar
Published: December 2007

The present study used the tip-of-the-tongue (TOT) experimental paradigm in a picture naming task to explore the source of the naming deficits of children with dyslexia. Compared with a control group of typically developing readers, the children with dyslexia showed fewer correct responses and spontaneous recalls, more don't know (DK) and TOT responses, and less accurate feeling of knowing (FOK) judgments. When they failed to retrieve a target word, the children with dyslexia did not differ from the control group in the partial semantic information they provided, but they gave less valid and more invalid partial phonological information. The children with dyslexia also benefited less from phonological cues. The phonologically related responses of the children with dyslexia elicited during the administration of the TOT procedure were related to their performance on a phonological awareness test. These findings suggest that the naming problems of children with dyslexia arise because of their difficulty in accessing the phonological word forms after the corresponding abstract lexical representation has been successfully accessed. The results are discussed in relation to the claim that two-stage models of naming can be profitably used in the early identification and treatment of reading disabilities.
Clock Drawing in Developmental Dyslexia
Authors: Eden Guinevere F. , Wood Frank B. , Stein John F.
Published: December 2007

Although developmental dyslexia is often defined as a language-based reading impairment not attributable to low intelligence or educational or socioeconomic limitations, the behavioral manifestations of dyslexia are not restricted to the realm of language. Functional brain imaging studies have shed light on physiological differences associated with poor reading both inside and outside the classical language areas of the brain. Concurrently, clinically useful tests that elicit these nonlinguistic deficits are few. Specifically, the integrity of the dorsal visual pathway, which predominantly projects to the parietal cortex, remains underinvestigated, lacking easily administered tests. Here we present the Clock Drawing Test (CDT), used to test the visuoconstructive ability of children with and without dyslexia and garden-variety poor readers. Compared to typically reading children, many children with dyslexia and some garden-variety poor readers showed significant left neglect, as measured by the distribution of figures drawn on the left clock face. In the poor readers with dyslexia, we observed spatial construction deficits like those of patients with acquired right-hemisphere lesions. The results suggest that in some children with dyslexia, right-hemisphere dysfunction may compound the phonological processing deficits attributed to the left hemisphere. The CDT provides an easy opportunity to assess skills known to be associated with right-hemisphere parietal function. This test can be easily administered to children for both clinical and research purposes.
Memory Performance of Children with Dyslexia
Authors: Howes Nancy-Louise , Bigler Erin D. , Burlingame Gary M. , Lawson John S.
Published: December 2007

This study examined the memory performance of children with reading disabilities (RD) using methodology representative of three theoretical perspectives on RD subtypes: the phonological deficit, dual route, and phonological-core variable-difference models. Analyses compared the serial memory, verbal learning, and abstract visual-spatial memory performance of 45 children with RD to that of chronological-age (CA)- and reading-level (RL)-matched controls, using subtype identification methods from each of the theoretical models to classify children with RD. Phonological deficit and dual route comparisons indicated that children with RD, regardless of subtype, performed more poorly than CA- and better than RL-matched participants on all memory tasks. Phonological-core variable-difference methodology yielded three RD subtypes, two of which exhibited distinctive memory deficits relative to both CA and RL control groups. The phonological-core variable-difference model accounted for more variance in memory performance than either of the other two models.
The Differential Impact of Academic Self-Regulatory Methods on Academic Achievement Among University Students With and Without Learning Disabilities
Authors: Ruban Lilia M. , McCoach D. Betsy , McGuire Joan M. , Reis Sally M.
Published: December 2007

Although research on academic self-regulation has proliferated in recent years, no studies have investigated the question of whether the perceived usefulness and the use of standard self-regulated learning strategies and compensation strategies provide a differential prediction of academic achievement for university students with and without learning disabilities (LD). We developed and tested a model explaining interrelationships among self-regulatory variables and grade point average (GPA) using structural equation modeling and multiple group analysis for students with LD (n = 53) and without LD (n = 421). Data were gathered using a new instrument, the Learn ing Strategies and Study Skills survey. The results of this study indicate that students with LD differed significantly from students without LD in the relationships between their motivation for and use of standard self-regulated learning strategies and compensation strategies, which in turn provided a differential explanation of academic achievement for students with and without LD. These paths of influence and idiosyncrasies of academic self-regulation among students with LD were interpreted in terms of social cognitive theory, metacognitive theory, and research conducted in the LD field.
Dyslexia and the Life Course
Authors: McNulty Michael A.
Published: December 2007

The life stories of adults diagnosed with dyslexia as children were examined, with emphasis on the related emotional experiences. The life story method of narrative analysis was used to compare and analyze the accounts of 12 participants who were interviewed extensively. The findings indicated that self-esteem problems may emerge by early childhood as individuals contend with aspects of their learning disabilities that interfere with typical development. By school age, all participants noted self-esteem problems when they experienced struggles or failures in school, which could feel traumatic. Testing and diagnosis improved self-esteem when conducted in a relevant manner that led to adaptation. The central plots of the participants' lives were characterized by the interplay between the functional challenges of their learning disabilities and the related self-esteem issues. Compensation involved the individual's areas of competence and the resources within the environment. Niches in late adolescence and young adulthood held potential to dramatically improve compensation. Participants generally exhibited four ways of life in adulthood and an added sense of emotional insecurity. Each attempted to integrate lifelong emotional experiences related to living with diagnosed dyslexia.
Cognitive, Academic, and Attitudinal Predictors of the Grade Point Averages of College Students with Learning Disabilities
Authors: Murray Christopher , Wren Carol T.
Published: December 2007

This study examined cognitive, academic, and attitudinal predictors of college grade point average (GPA) among college students with learning disabilities (LD). The study population included 84 youth who attended a large private university in the midwestern United States. Measures of cognitive and academic functioning, along with a self-report measure of study habits and study attitudes, were used to predict college GPA. The results indicated that Full Scale IQ and one factor on the self-reported study habits scale accounted for a significant amount of variance in students' college GPA. These findings suggest that variables other than traditional cognitive and academic skills are important for determining the performance of youth with LD during college. The implications of these findings for future research efforts and practice are discussed.
The Differential Effects of Teaching Addition Through Strategy Instruction Versus Drill and Practice to Students With and Without Learning Disabilities
Authors: Tournaki Nelly
Published: December 2007

Forty-two second-grade general education students and 42 students with learning disabilities (LD) were taught basic, one-digit addition facts (e.g., 5 + 3 = __). Students received instruction via (a) a minimum addend strategy, (b) drill and practice, or (c) control. The effectiveness of the two methods was measured through students' accuracy and latency scores on a posttest and a transfer task (e.g., 5 + 3 + 7 = __). Students with LD improved significantly only in the strategy condition, as compared to drill-and-practice and control conditions, whereas general education students improved significantly both in the strategy and the drill-and-practice conditions as compared to the control condition. However, in the transfer task, students from all groups became significantly more accurate only in the strategy condition, while all students were significantly faster than their control group peers regardless of teaching method. The implications for teachers' differential choices of methods of instruction for students with different learning characteristics are discussed.
Effect Size Use in Studies of Learning Disabilities
Authors: Ives Bob
Published: December 2007

The misinterpretation and overuse of significance testing in the social sciences has been widely criticized. This criticism is reviewed, along with several recommendations found in the literature, including the use of effect size measures to enhance the interpretation of significance testing. A review of typical effect size measures and their application is followed by an analysis of the extent to which effect size measures have been applied in three prominent journals on learning disabilities over a 10-year period. Specific recommendations are offered for using effect size measures to improve the quality of reporting on quantitative research in the field of learning disabilities.
Toward a Research-Based Assessment of Dyslexia
Authors: Mee Bell Sherry , McCallum R. Steve , Cox Elizabeth A.
Published: December 2007

One hundred five participants from a random sample of elementary and middle school children completed measures of reading achievement and cognitive abilities presumed, based on a synthesis of current dyslexia research, to underlie reading. Factor analyses of these cognitive variables (including auditory processing, phonological awareness, short-term auditory memory, visual memory, rapid automatized naming, and visual processing speed) produced three empirically and theoretically derived factors (auditory processing, visual processing/speed, and memory), each of which contributed to the prediction of reading and spelling skills. Factor scores from the three factors combined predicted 85% of the variance associated with letter/sight word naming, 70% of the variance associated with reading comprehension, 73% for spelling, and 61% for phonetic decoding. The auditory processing factor was the strongest predictor, accounting for 27% to 43% of the variance across the different achievement areas. The results provide practitioner and researcher with theoretical and empirical support for the inclusion of measures of the three factors, in addition to specific measures of reading achievement, in a standardized assessment of dyslexia. Guidelines for a thorough, research-based assessment are provided.
Effect of Attention Therapy on Reading Comprehension
Authors: Solan Harold A. , Shelley-Tremblay John , Ficarra Anthony , Silverman Michael , Larson Steven
Published: December 2007

This study quantified the influence of visual attention therapy on the reading comprehension of Grade 6 children with moderate reading disabilities (RD) in the absence of specific reading remediation. Thirty students with below-average reading scores were identified using standardized reading comprehension tests. Fifteen children were placed randomly in the experimental group and 15 in the control group. The Attention Battery of the Cognitive Assessment System was administered to all participants. The experimental group received 12 one-hour sessions of individually monitored, computer-based attention therapy programs; the control group received no therapy during their 12-week period. Each group was retested on attention and reading comprehension measures. In order to stimulate selective and sustained visual attention, the vision therapy stressed various aspects of arousal, activation, and vigilance. At the completion of attention therapy, the mean standard attention and reading comprehension scores of the experimental group had improved significantly. The control group, however, showed no significant improvement in reading comprehension scores after 12 weeks. Although uncertainties still exist, this investigation supports the notion that visual attention is malleable and that attention therapy has a significant effect on reading comprehension in this often neglected population.
Evaluation of a Numeracy Intervention Program Focusing on Basic Numerical Knowledge and Conceptual Knowledge
Authors: Kaufmann Liane , Handl Pia , Thöny Brigitte
Published: December 2007

The preliminary results of this study suggested that children with developmental dyscalculia benefit from a numeracy intervention program that focuses on basic numerical knowledge and conceptual knowledge. All children in the experimental group showed considerable and partly significant performance increases on all calculation components. Six children with developmental dyscalculia were trained individually and in small-group settings for a relatively short duration (one school semester). We argue that the positive intervention effects to a large extent are attributable to the explicit teaching of numerical domains that often have been found to be neglected in school mathematics.
Mathematical Learning Difficulties and PASS Cognitive Processes
Authors: Kroesbergen Evelyn H. , Van Luit Johannes E. H. , Naglieri Jack A.
Published: December 2007

This study examined the relationships between mathematical learning difficulties (MLD) and the planning, attention, simultaneous, successive (PASS) theory of cognitive processing. The Cognitive Assessment System (CAS) was used to measure the PASS processes for a group of 267 Dutch students with MLD who attended either general or special education. The results showed that students with MLD performed lower than their peers on all CAS scales and that the MLD group contained many students with cognitive weaknesses in planning or successive processing. Moreover, students who had specific difficulties with the acquisition of basic math facts, the automatization of such facts, or word-problem solving were found to have distinct PASS cognitive profiles. In order to investigate the relationships between cognitive abilities and improvement in the mastery of basic math facts and problem solving, 165 of the students with MLD were given a special multiplication intervention. It appeared that the effectiveness of this particular intervention did not differ across the groups of students with specific cognitive weaknesses.
Mathematics and Learning Disabilities
Authors: Geary David C.
Published: December 2007

Between 5% and 8% of school-age children have some form of memory or cognitive deficit that interferes with their ability to learn concepts or procedures in one or more mathematical domains. A review of the arithmetical competencies of these children is provided, along with discussion of underlying memory and cognitive deficits and potential neural correlates. The deficits are discussed in terms of three subtypes of mathematics learning disability and in terms of a more general framework for linking research in mathematical cognition to research in learning disabilities.
Children with Mathematics Learning Disabilities in Belgium
Authors: Desoete Annemie , Roeyers Herbert , De Clercq Armand
Published: December 2007

In Belgium, between 3% and 8% of the children in elementary schools have mathematics learning disabilities (MLD). Many of these children have less developed linguistic, procedural, and mental representation skills. Moreover, a majority of the children have been found to show inaccurate prediction and evaluation skills in Grade 3. MLD often become obvious in elementary school. Whereas some children are retained, others are referred to special education. During the last 10 years, the number of children in special education and the number of children with learning disabilities who are following a special guidance program in general education (inclusive education) have increased. Children in Belgium with MLD can get therapy for about 2 years. Nevertheless, many problems continue unresolved even in high school and adulthood.
Mathematics Education and Learning Disabilities in Spain
Authors: Casas Ana Miranda , Garcia Castellar Rosa
Published: December 2007

In the first part of this article, we describe the basic objectives of the math curriculum in Spain as well as the basic contents, teacher resources, and obstacles perceived in mathematics instruction. Second, we briefly describe the concept of learning disabilities (LD) as they are currently defined in Spain. As stated in the recent educational reform, a student with LD is any student with special educational needs. The emphasis is placed on the educational resources that these students need in order to achieve the curricular objectives that correspond to their age group or grade. Third, we comment specifically on the educational services model and the evaluation and instructional procedures for students with math learning disabilities. Finally, we describe some lines of research that have appeared in the last few years in Spain that have led to the development of new evaluation and intervention procedures for students with LD in computation and problem solving.
Strategy Development in Childrenwith Mathematical Disabilities
Authors: Torbeyns Joke , Verschaffel Lieven , Ghesquiere Pol
Published: December 2007

This study investigated the strategy characteristics and development of children with mathematical disabilities (MD) in the domain of simple addition and subtraction, in terms of Lemaire and Siegler's model of strategic change, using the choice/no-choice method and the combined chronological-age (CA)/ability-level (AL)—match design. Four groups of children, matched on either CA or mathematical AL, solved a series of 36 problems with the bridge over 10 in four conditions. In the choice condition, children could choose between retrieval, decomposition to 10, and counting on to solve each problem. In the retrieval, decomposition, and counting conditions, they had to answer the same 36 problems using retrieval, decomposition to 10, and counting on, respectively. The results revealed clear differences in the frequency, efficiency, and adaptiveness with which the CA-matched children applied the available strategies. In contrast, we observed no differences in strategy frequency, efficiency, and adaptiveness between the AL-matched children. These results support the hypothesis that the strategy development of children with MD is marked by a delay rather than a specific deficit. Moreover, this study further documents the value of the methodology used to study children's strategy use and development in the domain of simple arithmetic.
Taking Stock of Science in the Schoolhouse
Authors: Crockett Jean B.
Published: December 2007

In the opening discussion of this special issue, I take stock of science and schooling for students with learning disabilities (LD) before probing four ideas to foster effective instruction in contemporary schools: (a) Turn to science as the best trick we know for solving educational problems; (b) specify clearly what we hope to achieve in our instructional decisions for students with LD; (c) rely on instruction as the best tool we have for improving student performance; and (d) cultivate—and keep—competent and caring personnel. I invite commentary, from the perspectives of researchers, practitioners, and those who prepare teachers and administrators, to assess the status of science in the schoolhouse and to offer practical strategies for how the scientific orientation of schools might be enhanced.
Co-Teaching as Science in the Schoolhouse
Authors: Weiss Margaret P.
Published: December 2007

The concept of science in the schoolhouse combines knowledge of research-based practices with the complexities of day-to-day life in schools. In this discussion, co-teaching is offered as an example of how advocacy for a practice can outpace the science that supports it. There is a push for co-teaching in contemporary schools, and special educators in great numbers are being asked to join with general educators in meeting the needs of students with disabilities. However, the science behind co-teaching to date is very limited. Studies have examined the implementation of co-teaching as a general service delivery option, but much less attention has been paid scientifically to the character and quality of the co-taught instruction or to the impact of co-teaching on student outcomes. Within this context, I also examine how Crockett's four recommendations to support science in the schoolhouse could address the questions about co-teaching for which there are few answers.
Improving Beginning Reading Instruction and Intervention for Students with LD
Authors: Coyne Michael D. , Kame'enui Edward J. , Simmons Deborah C.
Published: December 2007

We begin with an examination of the tensions that exist between educational efforts that target the needs of all students and efforts that target the needs of individual students with disabilities. Next, we provide reasons why, in beginning reading, a schoolwide system designed to teach all students to read can also support individualized and flexible instruction designed to teach each student to read. Finally, we describe a schoolwide beginning reading model that includes a schoolwide framework or infrastructure that supports comprehensive and coordinated reading goals, assessment, and instruction for all students integrated with ongoing progress monitoring and instructional adjustments that allow for differentiated and individualized instruction for each student, including students with disabilities.
The Science of Professional Development
Authors: Klingner Janette K.
Published: December 2007

In this commentary, I discuss the science of professional development. A great deal is already known about how to provide professional development that supports teachers' implementation of evidence-based practices and the factors that enhance or inhibit teachers' sustained use of the practices. I summarize the work of researchers who have achieved some success in facilitating teachers' learning of new practices, highlighting my own research with colleagues. Professional development is known to be most successful when (a) researchers work closely with school districts, so that everyone is on the same page, and the practices that researchers are teaching are aligned with the district's curriculum and standards; (b) student outcome data showing that the practice works are provided to all; (c) administrative support is clearly evident; (d) long-term support is provided for teachers (including demonstrations and coaching); and (e) teachers take ownership of the practices and responsibility for mentoring their peers.
Science in the Schoolhouse
Authors: Bays Debora A.
Published: December 2007

School-level administrative support has been identified as an essential component of programs that promote research to practice. In this discussion, I address the critical role that school leaders play in supporting special educators and ensuring effective instruction for students with learning disabilities. Emphasis is placed on the need for teachers to be supported by administrators who are knowledgeable about special education and for administrators to receive the preparation and guidance they require to support science in contemporary schools.