The present study examines private speech and strategy-use patterns for solving simple number fact problems in addition. The progressive differentiation by grade between children's levels of private speech internalization--including silence--was investigated and related to children's developmental patterns for subcategories of strategy-use…

The article reviews literature on the information processing model with learning disabled children. Assumptions concerning the role of automaticity, prior knowledge, and executive functioning are questioned. Also discussed are procedures for identifying common denominations, subgrouping, isolating mental components underlying academic change, and…

This paper reviews studies using positron emission tomography and functional magnetic resonance imaging in adults to study the reading process and notes that general networks of regions seem to be uniquely associated with different components of the reading process. Findings are evaluated in light of technical and experimental limitations and…

Discussion of conceptual and methodological aspects of reading intervention research focuses on nine specific design limitations of previous intervention research; ways to measure and analyze change as a function of development, treatment intervention and ecological influences; assumptions of individual growth models; and advantages, conditions,…

This article reviews medical case study research from the United Kingdom, Germany, and the United States that identified characteristics, etiological factors, and treatment methods of reading disorders. It also addresses the validity of case study research from an historic and current-day perspective. (Contains references.) (Author/DB)

Examination of methodological issues in the design and interpretation of studies on the genetics of reading disability suggests three tests of increasing rigor for determining whether reading score distributions are categorical and thus not subject to analyses which assume a continuous normal distribution. Also noted are interactive relationships…

The importance and relevance of longitudinal research in learning disabilities is addressed, including its value in verification of appropriate hypotheses concerning particular developmental patterns and debunking of misconceptions. Examples from various longitudinal studies are given. (DB)

Critically evaluates recent research aimed at empirical identification of homogeneous subtypes of learning disability. It is suggested that researchers strive for more commonality in the methods and measures used for subtype analysis leading to a single classification scheme to reduce heterogeneity and improve educational efforts. (Author/DB)

This study with 37 learning-disabled (LD) elementary-age children found that LD children were lower in perceived cognitive competence and academic self-regulation than nondisabled control groups but were comparable to low achieving children. LD children were also likely to perceive academic outcomes as controlled by powerful others. (Author/DB)

This rejoinder to a critique of the authors' research on speech perception deficits in poor readers answers the specific criticisms and reaffirms their conclusion that the difficulty some poor readers have with rapid /ba/-/da/ discrimination does not stem from difficulty in discriminating the rapid spectral transitions at stop-vowel syllable…

Synthesizes information from a 1995 international symposium on longitudinal research in learning disabilities. Discussion of generic considerations of longitudinal research is followed by examination of issues specific to learning disabilities including definition, attrition, composition of research teams, ethical concerns, data collection, and…

This paper reviews criticism on misinterpretation and overuse of significance testing in the social sciences and examines use of effect size measures to enhance interpretation of significance testing. Review of typical effect size measures and their application is followed by analysis of use of effect size measures in studies reported over 10…

In response to a previous article, the paper notes additional reasons for the deficit in basic research and theory in learning disabilities, stresses the need for more good systematic research using multiple methods, and suggests that a metatheory for learning disabilities is not yet possible or profitable. (DB)

Issues are raised about the Council for Learning Disabilities Research Committee's standards for describing research subjects, including justification for the recommended standards, relationship between description of subjects and probability of replication, and impact of the type of research on subject description standards. Recommendations are…

The article reviews three studies (EC 600 064-066) evaluating the effectiveness of using Irlen tinted lenses or overlays with reading-disabled persons. It is concluded that carefully designed and controlled studies do not currently lend support to the Irlen hypothesis. (DB)