The Reduced Reparameterized Unified Model (Reduced RUM) is a diagnostic classification model for educational assessment that has received considerable attention among psychometricians. However, the computational options for researchers and practitioners who wish to use the Reduced RUM in their work, but do not feel comfortable writing their own…

Evidence based and comprehensive, this important work offers a new approach to understanding and intervening with students with learning disabilities. The authors--leading experts in neuropsychology and special education--present a unique model of learning disabilities that integrates the cognitive, neural, genetic, and contextual factors…

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…