The performance of reading-disabled, math-disabled, slow-learning, under-achieving, and normal-achieving children (total n=143) was compared on verbal and visual-spatial working memory measures under initial, gain, and maintenance testing conditions. Ability group classifications changed under dynamic testing conditions. The study demonstrated the…

In response to articles concerning the author's earlier paper, the paper responds to criticisms concerning contextualism, the role of metatheory, distinctions between basic and applied research, cognitive components and specificity, the science of learning disabilities, neurological indices, model validation, and the nature of learning…

Based on frequency of citations in the Social Science Citation Index, 33 prominent articles on learning disabilities (1976 to 1985) were compared with randomly selected articles in 16 categories, including funding source, research design, and statistical method. Discussion focuses on characteristics and quality of articles influencing the learning…

The National Joint Committee for Learning Disabilities' definition of learning disabilities is presented, followed by a discussion of parameters to be considered in operationalizing the definition. Major definitional issues are then explored, including using testable and meaningful constructs, linking definitions to neuropsychological evidence,…

Evaluation of the relationship between metacognition and analogical reasoning in 80 children (mildly retarded, learning disabled, normal achieving, and gifted) suggests that retarded children's performance reflected a central processing deficiency across processes, learning-disabled children's performance reflected specific processing…

Evaluation of two meta-analyses of sociometric research on children with learning disabilities notes differences in their findings. Differences are attributed to effects of gender, ethnicity, and type of measurement on effect size; inadequate reporting of coding reliability; failure to include similar articles for analysis; and poor…

This paper provides a rationale for basic research and metatheory development in the field of learning disabilities, outlines the steps and cognitive parameters involved in validating such a metatheory, and discusses integrating the findings of basic research with instructional manipulations and reasons for the poor integration of theory and…