Diagnosis and treatment of reading disabilities based on the component model of reading: an alternative to the discrepancy model of LD

Currently, learning disabilities (LD) are diagnosed on the basis of the discrepancy between students' IQ and reading achievement scores. Students diagnosed with LD often receive remedial instruction in resource rooms. The available evidence suggests that the educational policy based on this discrepancy model has not yielded satisfactory results. This has led researchers to try other paradigms, such as the component model and response to intervention, for dealing with children with reading disabilities. The component model of reading (CMR) described in the present article identifies the reading component that is the source of reading difficulty and targets instruction at that component. Study 1 describes the CMR and reports on its validity. Study 2 describes the successful outcome of a 7-year CMR-based reading instruction program. Compared to the discrepancy model, the CMR has demonstrated several advantages.     

Pilot study evaluating the impact of dialogic reading and shared reading at transition to primary school: early literacy skills and parental attitudes

Previous studies have demonstrated the positive impact of shared reading (SR) and dialogic reading (DR) on young children's language and literacy development. This exploratory study compared the relative impact of parental DR and shared reading interventions on 4‐year‐old children's early literacy skills and parental attitudes to reading prior to and following school entry. Parents were trained using a self‐instruction training DVD. The children's rhyme awareness, word reading, concepts about print and writing vocabulary were assessed before and after 6 weeks over the summer period and again after one term in school. Four illustrative case studies are presented, which reveal the differential impact of the interventions on the families who participated. Findings indicated that DR had a positive impact on children's enjoyment of reading, concepts about print, parent–child reading behaviours and parental attitudes to joint storybook reading. The children who experienced shared‐book reading during the intervention also demonstrated improvements in word reading. There were no changes in rhyme awareness or writing vocabulary for either group. Changes in print concept awareness were not maintained at follow‐up, but improvements in writing vocabulary and word reading scores were noted. The reasons for this are discussed with reference to the formal literacy instruction the children received during their first academic term.     

A Tiered Intervention Model for Early Vocabulary Instruction: The Effects of Tiered Instruction for Young Students At Risk for Reading Disability

Vocabulary knowledge at school entry is a robust predictor of later reading achievement. Many children begin formal reading instruction at a significant disadvantage due to low levels of vocabulary. Until recently, relatively few research studies examined the efficacy of vocabulary interventions for children in the early primary grades (e.g., before fourth grade), and even fewer addressed vocabulary intervention for students at increased risk for reading failure. In more recent work, researchers have begun to explore ways in which to diminish the “meaningful differences” in language achievement noted among children as they enter formal schooling. This article provides a review of a particularly effective model of vocabulary intervention based on shared storybook reading and situates this model in a context of tiered intervention, an emerging model of instructional design in the field of special education. In addition, we describe a quasi‐experimental posttest‐only study that examines the feasibility and effectiveness of the model for first‐grade students. Participants were 224 first‐grade students of whom 98 were identified as at risk for reading disability based on low levels of vocabulary. Results of a multivariate analysis of variance revealed significant differences on measures of target vocabulary knowledge at the receptive and context level, suggesting that students at risk for reading failure benefit significantly from a second tier of vocabulary instruction. Implications for classroom practice as well as future research are provided.     

Regulatory Contributors to Children's Kindergarten Achievement

The present study sought to examine whether preschool children's emotion regulation, problem behaviors, and kindergarten behavioral self-regulation in the classroom were predictors of kindergarten achievement scores. The children (N = 122, 47% male and 63% European American) who were participating in an ongoing longitudinal study, were seen at both a preschool and kindergarten assessment. The present study examined the relation between parent report, teacher report, and laboratory measures of regulation and children's achievement test scores. Children's emotion regulation and behavioral self-regulation in the classroom were related to all measures of achievement. The relation between preschool emotion regulation and kindergarten achievement was mediated by behavioral self-regulation in the kindergarten classroom. In addition, all measures of regulation were correlated, suggesting that some children who have difficulty regulating their behavior in one setting (such as home) may also have difficulty with regulation in other settings (such as school).     

Tiers of intervention in kindergarten through third grade

This study measured the effects of increasing levels of intervention in reading for a cohort of children in Grades K through 3 to determine whether the severity of reading disability (RD) could be significantly reduced in the catchment schools. Tier 1 consisted of professional development for teachers of reading. The focus of this study is on additional instruction that was provided as early as kindergarten for children whose achievement fell below average. Tier 2 intervention consisted of small-group reading instruction 3 times per week, and Tier 3 of daily instruction delivered individually or in groups of two. A comparison of the reading achievement of third-grade children who were at risk in kindergarten showed moderate to large differences favoring children in the tiered interventions in decoding, word identification, fluency, and reading comprehension.     

Reading with vocabulary intervention: evaluation of an instruction for children with poor response to reading intervention

Interventions combining phonically based reading instruction with phonological training are generally effective for children with reading (decoding) difficulties. However, a minority of children respond poorly to such interventions. This study explored the characteristics of children who showed poor response to reading intervention and aimed to improve their literacy and language skills via a new theoretically motivated intervention. Twelve 8‐year‐old treatment poor responders with severe and persisting reading difficulties participated. A 9‐week reading intervention incorporating reading, phonological and vocabulary training was implemented. Before the intervention began the children showed almost no progress over 6 months of regular classroom education, on measures of oral language and literacy. Over the intervention period improvements were made on measures of reading, phonological awareness and language skills, which were maintained 6 months later. Although the intervention was effective, it should be noted that most children remained poor readers and require ongoing remediation.     

Substance use, substance abuse, and LD among adolescents with a childhood history of ADHD

A clinic-referred sample of 109 children with attention-deficit/hyperactivity disorder (ADHD) was followed into adolescence for the ascertainment of alcohol and other drug use and abuse. Learning disability (reading or math) in childhood was examined as a predictor of adolescent substance use and substance use disorder for alcohol and marijuana. No statistically significant group differences for children with LD versus those without LD emerged even after using different methods to compute LD. IQ/achievement discrepancy scores were similarly not predictive of later use or abuse. However, children with ADHD who had higher IQs and higher levels of academic achievement in childhood were more likely to try cigarettes, to smoke daily, and to have their first drink of alcohol or first cigarette at an early age. Children with ADHD who had higher reading achievement scores were less likely to have later alcohol use disorder. Although these findings are necessarily preliminary, due to the small number of children interviewed, the pattern of results suggests that level of cognitive functioning--rather than discrepancy between IQ and achievement--is important for the prediction of later substance use and abuse, at least in this clinic-referred sample of children with ADHD. Further, different mechanisms of risk related to cognitive functioning may be operating for experimentation with legal drugs such as alcohol and tobacco, regular cigarette smoking, and problematic alcohol use.     

What is the Role of Intelligence in the Identification of Specific Learning Disabilities? Issues and Clarifications

A fundamental assumption in the identification of specific learning disabilities (SLD) has been that the presence of a severe discrepancy between ability and academic achievement is a valid marker for the presence of a SLD. This assumption is based on the notion that discrepant low achievers constitute a unique group of children who are different in a number of ways from nondiscrepant low achievers. Several meta‐analytic reviews contrasting discrepant and nondiscrepant low achievers fail to reveal significant differences between these two groups on measures of phonetic analysis, pseudoword decoding, word identification, spelling, oral reading fluency and other measures of literacy development and related phonological processing skills. This paper discusses the role of intelligence in identifying children with SLD and presents data based on correlational analyses and hierarchical regression analyses showing that intelligence is not a strong predictor of reading achievement and does not predict responsiveness to remedial instruction. These data also indicate that direct measures of responsiveness to intervention (RTI) strongly predict later reading achievement in tutored children from 1st grade through 4th grade. The combined results suggest that RTI approaches to the identification of SLD may have greater utility than psychometric approaches based on IQ scores or individual profile analysis.     

Extending Responsiveness to Intervention to Mathematics at First and Third Grades

Responsiveness to intervention (RTI) is an innovative approach to the identification of learning disabilities (LD). The central assumption is that RTI can differentiate between two explanations for low achievement: poor instruction versus disability. If the child responds poorly to validated instruction, then the assessment eliminates instructional quality as a viable explanation for poor academic growth and instead provides evidence of a disability. For children who do respond nicely, RTI serves a critical prevention function. Most of RTI research has been focused on early reading. In this article, we describe two ongoing programs of research on RTI in the area of mathematics: one on a comprehensive mathematics curriculum at first grade and the other focused on word problems at third grade. For each research program, we describe the sample, explain how students are identified as at risk for mathematics disability, provide an overview of the interventions to which responsiveness is gauged, and describe some results to date.     

Beginning reading intervention as inoculation or insulin: first-grade reading performance of strong responders to kindergarten intervention

This study examined the first-grade reading progress of children who participated in an intensive beginning reading intervention in kindergarten. Specifically, the study investigated whether kindergarten intervention could prevent first-grade reading difficulties, or produce an "inoculation" effect, for some children under certain instructional conditions. Participants included children at risk for developing reading difficulties who received a 7-month beginning reading intervention in kindergarten. In October of first grade, 59 children who had achieved criterion levels on measures of phonological awareness and alphabetic knowledge were randomly assigned to one of two types of first-grade reading instruction: (a) code-based classroom instruction and a supplemental maintenance intervention, or (b) only code-based classroom instruction. February posttest measures assessed oral reading fluency, word reading, nonword reading, and comprehension. Between-group analyses indicated that instructional groups did not differ on any posttest measure. The students' absolute levels of achievement were compared to national and local normative samples. These results indicated that between 75% and 100% of students in both conditions attained posttest levels and demonstrated growth comparable to their average-achieving peers. These results support the hypothesis that strong responders to kindergarten intervention can experience an inoculation effect through the middle of first grade with research-validated classroom reading instruction.     

Bringing Research‐Based Practice in Reading Intervention to Scale

Multiple consensus reports have provided converging evidence regarding effective instruction for students who have difficulty learning to read. Evidence‐based instruction in general education classrooms must be in place in order to implement response‐to‐intervention models. Despite the well‐developed knowledge base supporting the value of interventions that have been demonstrated to have positive outcomes, these interventions are not widely employed in typical classroom instruction, and models of service delivery for students with reading and learning disabilities implemented in schools are often ineffective. Recent research has demonstrated that this need not be the case, but there are many obstacles to change. Large‐scale implementation of effective educational practices for struggling readers depends on a research agenda that directly addresses questions related to scaling and sustaining educational innovations. We suggest that reform depends on collaboration among researchers, educational practitioners, teacher educators, and policymakers, with the common goal of improving outcomes for students who might otherwise experience reading failure.     

CLASSROOM VICTIMIZATION: CONSEQUENCES FOR SOCIAL AND ACADEMIC ADJUSTMENT IN ELEMENTARY SCHOOL

Peer victimization is a well‐established risk factor for children's adjustment, but it has rarely been studied as a feature of classroom climate. This study examines the consequences of classroom victimization for children's social and academic adjustment. Classroom victimization, social functioning, and academic adjustment were assessed in two subsamples taken from a full sample of 523 children nested in 28 classrooms, followed over the course of a school year. Results from a subsample of 213 students suggested that higher classroom levels of victimization predicted attenuated growth in children's reading achievement as well as greater stability of reading achievement over the course of the year. Results from a subsample of 490 children suggested that lower levels of classroom victimization predicted reduced stability of peer social preference and mitigated the trajectory between children's externalizing behavior and poor social preference. Implications for prevention of and interventions targeting peer victimization are discussed.     

Principals’ qualifications in special education and students with and at risk for disabilities’ reading achievement growth in kindergarten

To effectively teach reading to students with and at risk for disabilities, special and general education teachers depend on principals who support effective specialized reading instruction. Yet, extant research indicates that principals have inadequate preparation for supporting specialized instruction. To address this issue, scholars have recommended that leader preparation programs should provide prospective leaders with more preparation in special education. However, research to date provides limited indications of whether more preparation would in fact support more effective leadership for special education. Therefore, we examined data from the Early Childhood Longitudinal Study to determine whether principals’ qualifications in special education and in reading predicted struggling readers’ and students with disabilities’ reading achievement growth in kindergarten. We found no effects; principals’ coursework in special education, coursework in reading, prior experiences as a special education teacher, and experience in school leadership did not predict reading achievement growth among students with or at-risk for disabilities.     

Parents’ reading history as an indicator of risk for reading difficulties

Children from families whose members have reading impairments are found to be poorer performers, take less advantage of instruction, and require more time to reach the reading level of children whose relatives are good readers. As a family’s reading history may not be available, a self-report of reading abilities is used to identify children’s background. In this paper, we explored the contribution of phonological, literacy, and linguistic abilities and reported parental reading abilities to predict reading achievement at the end of the school year in a Spanish sample. Children who were starting to read were assessed in a variety of oral language, phonological, and literacy tasks at the beginning and end of the school year. Parents filled out a self-report questionnaire about their reading abilities. Their answers were used to assign children to good or poor reader parent groups (GRP vs PRP). A logistic and ROC analysis were used to assess the variables’ discriminative capability, considering literacy scores at the end of the year as a measure of reading achievement. GRP children obtained higher scores than PRP children did. Performance on tasks of rapid naming assessment (RAN) letters (78.6%), Word Reading (75.7%), and Deletion (75.6%) were the most accurate predictors of children’s reading achievement. IPRA showed slightly lower accuracy (73.8) than did the behavioral measures and as high specificity as RAN letters (96.2%), similarly to the percentages found in previous studies. Although behavioral measures were shown as the best predictors, parents’ self-reports could also provide a quick estimation of family risk of difficulties in literacy acquisition.     

Curriculum-based assessment of reading skills: Considerations and caveats for school psychologists

General dissatisfaction with commercial norm-referenced tests and global ability measures and the need for more specific achievement measures due to changes in special education have led to an increased interest in the curriculum-based assessment of reading. We argue that a curriculum-based assessment (CBA) of reading provides relevant information for instructional interventions only if the content of the curriculum and instruction are grounded in the cognitive skills underlying the domain of reading. If CBA is based on valid cognitive constructs, it may assist greatly in the identification of younger readers at risk for reading problems, older students with reading problems, and provide the most sensitive measure of continuous progress. We discuss the implications of our review for the training of school psychologists and for consultation. © 1998 John Wiley & Sons, Inc.     

Academic underachievement among children with epilepsy: proportion exceeding psychometric criteria for learning disability and associated risk factors

This study assessed rates of learning disabilities (LD) by several psychometric definitions in children with epilepsy and identified risk factors. Participants (N = 173, ages 8-15 years) completed IQ screening, academic achievement testing, and structured interviews. Children with significant head injury, chronic physical conditions, or mental retardation were excluded. Using an IQ-achievement discrepancy definition, 48% exceeded the cutoff for LD in at least one academic area; using low-achievement definitions, 41% to 62% exceeded cutoffs in at least one academic area. Younger children with generalized nonabsence seizures were at increased risk for math LD using the IQ-achievement discrepancy definition; age of seizure onset and attention-deficit/hyperactivity disorder (ADHD) were risk factors for reading and math LD using low-achievement definitions. Writing was the most common domain affected, but neither ADHD nor seizure variables reliably identified children at risk for writing LD. Although children with earlier seizure onset, generalized nonabsence seizures, and comorbid ADHD appear to be at increased risk for some types of LD by some definitions, these findings largely suggest that all children with epilepsy should be considered vulnerable to LD. A diagnosis of epilepsy (even with controlled seizures and less severe seizure types) should provide sufficient cause to screen school-age children for LD and comorbid ADHD.     

Effective literacy instruction for adults with specific learning disabilities: implications for adult educators

Adults with learning disabilities (LD) attending adult basic education, GED programs, or community colleges are among the lowest performers on measures of literacy. For example, on multiple measures of reading comprehension, adults with LD had a mean reading score at the third grade level, whereas adults without LD read at the fifth grade level. In addition, large numbers of adults perform at the lowest skill levels on quantitative tasks. Clearly, significant instructional challenges exist for adults who struggle with literacy issues, and those challenges can be greater for adults with LD. In this article, the literature on adults with LD is reviewed, and evidenced-based instructional practices that significantly narrow the literacy achievement gap for this population are identified. Primary attention is given to instructional factors that have been shown to affect literacy outcomes for adults with LD. These factors include the use of explicit instruction, instructional technology, and intensive tutoring in skills and strategies embedded in authentic contexts.     

Social‐Information‐Processing Skills of Kindergarten Children with Developmental Learning Disabilities

The study examined the social‐information‐processing skills of kindergarten children with developmental learning disabilities (LD) utilizing Crick and Dodge's (1994) model of children's social adjustment as a theoretical framework. Participants consisted of 20 kindergarten children with developmental LD who attended three integrated kindergartens and 20 children without developmental LD from the same kindergartens. Participants were assessed on social‐information‐processing skills, feelings of loneliness, sense of coherence, and teachers' ratings of behavioral problems and positive resources. The results indicated that girls with developmental LD performed significantly lower on two information‐processing steps—the response decision and the enactment steps—than did girls without LD. Such differences were not found for boys. The results also showed that the social‐information‐processing skills of children with developmental LD were correlated with teachers' ratings.     

Science Education and Students with Learning Disabilities

Students with learning disabilities (LD) are increasingly expected to master content in the general education curriculum, making the need for effective instructional supports more important than ever before. Science is a part of the curriculum that can be particularly challenging to students with LD because of the diverse demands it places on cognitive performance. In this summary we review a number of strategies that have been validated for learners with LD. The strategies include supports for (a) verbal learning of declarative information, (b) processing information in texts, (c) activities‐based instruction/experiential learning, (d) scientific thinking and reasoning, and (e) differentiated instruction. We also summarize the research regarding the impact of teacher behavior on achievement for students with LD in science education. The strategies reviewed yield tangible and positive effect sizes that suggest that their application to the target domain will substantially improve outcomes for students with LD in science education.     

Problem‐Solving Model for Decision Making with High‐Incidence Disabilities: The Minneapolis Experience

The problem‐solving model (PSM) is used in the Minneapolis Public Schools to guide decisions regarding: (1) interventions in general education, (2) referral to special education, and (3) evaluation for special education eligibility for high‐incidence disability areas. District implementation was driven by four themes: the appropriateness of intelligence tests and the IQ‐achievement discrepancy for determination of eligibility, bias in assessment, allocation of school psychologist time, and linking assessment to instruction through curriculum‐based measurement. This article describes how the PSM was designed as a three‐stage process to measure response to intervention and used in the special education eligibility process. Program evaluation data collected since initial implementation in 1994 is reported in the areas of child count, achievement, referral, eligibility, and disproportion. The authors discuss the limitations of conducting PSM research in school settings, barriers to implementation of PSM, and make suggestions for enhancing treatment integrity.