Cognitive Processing Deficits and Students with Specific Learning Disabilities: A Selective Meta-Analysis of the Literature

Many practitioners and state education agency staff would likely agree that the accuracy and consistency of specific learning disability (SLD) eligibility decisions is in need of improvement. One component of the SLD definition particularly controversial in the identification procedures is the evaluation of cognitive processes, primarily due to a lack of information about the role they might play in informing an SLD diagnosis and eligibility for special education services. A meta-analysis of 32 studies was conducted to examine the cognitive processing differences between students with SLD and typically achieving peers. The analysis found moderately large to large effect sizes in cognitive processing differences between groups of students with SLD and typically achieving students. These differences are of sufficient magnitude to justify including measures of cognitive processing ability in the evaluation and identification of SLD.

[1]  E. Bigler,et al.  Memory Performance of Children with Dyslexia , 2003, Journal of learning disabilities.

[2]  D. Geary.  Mathematics and Learning Disabilities , 2004, Journal of learning disabilities.

[3]  Louis Danielson,et al.  Identification of learning disabilities : research to practice , 2002 .

[4]  L. Siegel.  An Evaluation of the Discrepancy Definition of Dyslexia , 1992, Journal of learning disabilities.

[5]  R. Abbott,et al.  Predicting Response to Early Reading Intervention From Verbal IQ, Reading-Related Language Abilities, Attention Ratings, and Verbal IQ—Word Reading Discrepancy , 2003, Journal of learning disabilities.

[6]  Dawn P. Flanagan,et al.  Integration of response to intervention and norm‐referenced tests in learning disability identification: Learning from the Tower of Babel , 2006 .

[7]  H. Lee Swanson,et al.  Children with Reading Disabilities: Does Dynamic Assessment Help in the Classification? , 2005 .

[8]  R. Johnston,et al.  Children's arithmetical difficulties: contributions from processing speed, item identification, and short-term memory. , 1997, Journal of experimental child psychology.

[9]  G. Reid Lyon,et al.  Frames of reference for the assessment of learning disabilities : new views on measurement issues , 1994 .

[10]  L. Littlefield,et al.  Examining Visual-Verbal Associations in Children with and Without Reading Disorder , 2005 .

[11]  E. Walker,et al.  Diagnostic and Statistical Manual of Mental Disorders , 2013 .

[12]  J. Ysseldyke,et al.  Declaring Students Eligible for Learning Disability Services: Why Bother with the Data? , 1982 .

[13]  Kenneth A. Kavale,et al.  Setting the Record Straight on Learning Disability and Low Achievement: Implications for Policymaking. , 1994 .

[14]  Joseph K. Torgesen,et al.  Individual Differences in Response to Early Interventions in Reading: The Lingering Problem of Treatment Resisters , 2000 .

[15]  M. Semrud-Clikeman.  Neuropsychological Aspects for Evaluating Learning Disabilities , 2005 .

[16]  B. Pennington,et al.  Processing Speed Deficits in Attention Deficit/Hyperactivity Disorder and Reading Disability , 2006, Journal of abnormal child psychology.

[17]  Mary K. Hoard,et al.  Numerical and arithmetical cognition: a longitudinal study of process and concept deficits in children with learning disability. , 2000, Journal of experimental child psychology.

[18]  H. Swanson,et al.  The influence of working memory on reading growth in subgroups of children with reading disabilities. , 2007, Journal of experimental child psychology.

[19]  Ingram Olkin,et al.  Estimation of a Single Effect Size: Parametric and Nonparametric Methods , 1985 .

[20]  D. P. Hurford,et al.  Early Identification and Remediation of Phonological-Processing Deficits in First-Grade Children at Risk for Reading Disabilities , 1994, Journal of learning disabilities.

[21]  Stephen W. Raudenbush,et al.  Random effects models. , 1994 .

[22]  P. Ackerman,et al.  Phonological Processes, Confrontational Naming, and Immediate Memory in Dyslexia , 1993, Journal of learning disabilities.

[23]  H. Lee Swanson,et al.  Reading Research for Students with LD , 1999, Journal of learning disabilities.

[24]  Lynn S. Fuchs,et al.  Mathematics Screening and Progress Monitoring at First Grade: Implications for Responsiveness to Intervention , 2007 .

[25]  B. Wong,et al.  Memory for Everyday Information in Students with Learning Disabilities , 2003, Journal of learning disabilities.

[26]  C. Harries,et al.  Evaluating psychodiagnostic decisions. , 2007, Journal of evaluation in clinical practice.

[27]  Brian Butterworth,et al.  Developmental dyscalculia and basic numerical capacities: a study of 8–9-year-old students , 2004, Cognition.

[28]  Lynn S. Fuchs,et al.  Responding to Nonresponders: An Experimental Field Trial of Identification and Intervention Methods , 2005 .

[29]  C. Reynolds,et al.  Neuropsychological Perspectives on Learning Disabilities in the Era of RTI: Recommendations for Diagnosis and Intervention , 2009 .

[30]  M. Mazzocco,et al.  Cognitive Characteristics of Children With Mathematics Learning Disability (MLD) Vary as a Function of the Cutoff Criterion Used to Define MLD , 2007, Journal of learning disabilities.

[31]  David C. Geary,et al.  Cognitive addition: A short longitudinal study of strategy choice and speed-of-processing differences in normal and mathematically disabled children. , 1991 .

[32]  J. Kirby,et al.  Cognitive Patterns of Children with Dyslexia , 1994, Journal of learning disabilities.

[33]  Mary K. Hoard,et al.  Cognitive mechanisms underlying achievement deficits in children with mathematical learning disability. , 2007, Child development.

[34]  L. Siegel,et al.  Cognitive Functioning as Measured by the WISC-R , 2003, Journal of learning disabilities.

[35]  J. P. Das,et al.  COGNITIVE PROCESSES AND IQ IN READING DISABILITY , 1996 .

[36]  Lynn S. Fuchs,et al.  Identifying Reading Disabilities by Responsiveness-to-Instruction: Specifying Measures and Criteria , 2004 .

[37]  Douglas Fuchs,et al.  Responsiveness‐to‐Intervention: Definitions, Evidence, and Implications for the Learning Disabilities Construct , 2003 .

[38]  Sue Palmer,et al.  Phonological recoding deficit in working memory of dyslexic teenagers , 2000 .

[39]  R. Savage,et al.  Beyond Phonology , 2006, Journal of learning disabilities.

[40]  H. Lee Swanson,et al.  Cognitive Processing of Low Achievers and Children with Reading Disabilities: A Selective Meta-Analytic Review of the Published Literature , 2000 .

[41]  H. Swanson.  Meta-Analysis of Research on Children with Reading Disabilities , 2010 .

[42]  Stephan M. Koplan.  The Fugitive Literature , 1979 .

[43]  L. Lombardino,et al.  Subtyping of children with developmental dyslexia via bootstrap aggregated clustering and the gap statistic: comparison with the double-deficit hypothesis. , 2007, International journal of language & communication disorders.

[44]  P. Lachenbruch.  Statistical Power Analysis for the Behavioral Sciences (2nd ed.) , 1989 .

[45]  F. Gresham,et al.  Learning Disabilities, Low Achievement, and Mild Mental Retardation , 1996, Journal of learning disabilities.

[46]  L. Hedges,et al.  The Handbook of Research Synthesis , 1995 .

[47]  E. McAuley,et al.  Working memory in children with specific arithmetical learning difficulties. , 1991, British journal of psychology.

[48]  K. Stanovich,et al.  Converging Evidence for Phonological and Surface Subtypes of Reading Disability. , 1997 .

[49]  J. Bisanz,et al.  Computational Skills, Working Memory, and Conceptual Knowledge in Older Children With Mathematics Learning Disabilities , 2008, Journal of learning disabilities.

[50]  R. Butler,et al.  Tower of London Test Performance in Children With Poor Arithmetic Skills , 2002, Developmental neuropsychology.

[51]  V. Berninger.  Research-supported ideas for implementing reauthorized IDEA with intelligent professional psychological services , 2006 .

[52]  H. Swanson,et al.  Reading comprehension and working memory in learning-disabled readers: Is the phonological loop more important than the executive system? , 1999, Journal of experimental child psychology.

[53]  L. Hedges,et al.  Statistical Methods for Meta-Analysis , 1987 .

[54]  M. Gerber.  Teachers Are Still the Test , 2005, Journal of learning disabilities.

[55]  L. Siegel,et al.  The development of working memory in normally achieving and subtypes of learning disabled children. , 1989, Child development.

[56]  G J Hitch,et al.  Working memory impairments in children with specific arithmetic learning difficulties. , 1999, Journal of experimental child psychology.

[57]  H. Lee Swanson,et al.  Cognitive processes as predictors of word recognition and reading comprehension in learning-disabled and skilled readers: Revisiting the specificity hypothesis. , 1997 .

[58]  Benjamin J. Lovett,et al.  Objective Criteria for Classification of Postsecondary Students as Learning Disabled , 2009, Journal of learning disabilities.

[59]  F. Gresham,et al.  Discrepancy Between Definitions of Learning Disabilities and School Practices , 1998, Journal of learning disabilities.

[60]  Setting the Record , 2009 .

[61]  H. Swanson,et al.  Age-related differences in learning disabled and skilled readers' working memory. , 2003, Journal of experimental child psychology.

[62]  K. Kavale,et al.  Identifying Specific Learning Disability , 2005, Journal of learning disabilities.

[63]  C. Pratt,et al.  Specificity and characteristics of learning disabilities. , 2005, Journal of child psychology and psychiatry, and allied disciplines.

[64]  Graham Hitch,et al.  The Development of Working Memory , 1992 .

[65]  Evelyn S. Johnson,et al.  Challenges With SLD Identification: What is the SLD Problem? , 2006 .

[66]  Dc Washington.  Diagnostic and Statistical Manual of Mental Disorders, 4th Ed. , 1994 .

[67]  Daryl F. Mellard,et al.  Modeling the condition of learning disabilities on post‐secondary populations , 1984 .

[68]  G. Hitch,et al.  Working memory in children , 1983 .

[69]  C. Reynolds,et al.  Comprar Neuropsychological Perspectives on Learning Disabilities in the Era of RTI: Recommendations for Diagnosis and Intervention | Elaine Fletcher-Janzen | 9780470225271 | Wiley , 2008 .

[70]  Hannah R Rothstein,et al.  A basic introduction to fixed‐effect and random‐effects models for meta‐analysis , 2010, Research synthesis methods.

[71]  Randy G. Floyd,et al.  Cattell–Horn–Carroll cognitive ability profiles of poor comprehenders , 2006 .

[72]  B. Pennington,et al.  Neuropsychological Analyses of Comorbidity Between Reading Disability and Attention Deficit Hyperactivity Disorder: In Search of the Common Deficit , 2005, Developmental neuropsychology.

[73]  L. Thompson,et al.  The Role of IQ in a Component Model of Reading , 2003, Journal of learning disabilities.

[74]  Larry V. Hedges,et al.  Fixed-Effects Models , 2022, The SAGE Encyclopedia of Research Design.

[75]  N. Mather,et al.  Introduction to the Special Issue, Part Two: It's about the what, the how well, and the why , 2006 .

[76]  S. Thompson,et al.  Quantifying heterogeneity in a meta‐analysis , 2002, Statistics in medicine.

[77]  Edward R. Sipay,et al.  Cognitive profiles of difficult-to-remediate and readily remediated poor readers : Early intervention as a vehicle for distinguishing between cognitive and experiential deficits as basic causes of specific Reading disability , 1996 .

[78]  Anne E. Fowler,et al.  Cognitive profiles of reading disability: Comparisons of discrepancy and low achievement definitions. , 1994 .

[79]  Daryl F. Mellard,et al.  LD Identification: It's Not Simply a Matter of Building a Better Mousetrap , 2004 .

[80]  N. Gregg,et al.  Specific Learning Disabilities: Clarifying, Not Eliminating, a Construct Points of Agreement Overreliance on Ability–achievement Discrepancy , 2006 .

[81]  H. Swanson,et al.  Math Disabilities: A Selective Meta-Analysis of the Literature , 2006 .

[82]  J. Fletcher.  Learning Disabilities : From Identification to Intervention , 2006 .

[83]  Bruce F. Pennington,et al.  Diagnosing Learning Disorders: A Neuropsychological Framework , 1991 .

[84]  M. Gerber.  Tolerance and Technology of Instruction: Implications for Special Education Reform , 1988, Exceptional children.

[85]  F. Vellutino,et al.  Semantic and phonological coding in poor and normal readers. , 1995, Journal of experimental child psychology.

[86]  T. Conway,et al.  Preventing reading failure in young children with phonological processing disabilities: Group and individual responses to instruction. , 1999 .

[87]  M. Snowling,et al.  Auditory word identification and phonological skills in dyslexic and average readers , 2001, Applied Psycholinguistics.