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Direct linkFastenau, Philip S.; Shen, Jianzhao; Dunn, David W.; Austin, Joan K. – Journal of Learning Disabilities, 2008
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…
Descriptors: Epilepsy, Mental Retardation, Learning Disabilities, Definitions
Peer reviewedArffa, Sharon; And Others – Journal of Learning Disabilities, 1989
This study sought to identify clusters or subtypes of children with learning disabilities (LD, n=24) and brain damage (BD, n=36) using a neuropsychological battery. Five clusters were determined, but no one cluster was composed exclusively of LD or BD subjects. Significant qualitative and quantitative differences between clusters were found.…
Descriptors: Cluster Grouping, Labeling (of Persons), Learning Disabilities, Neurological Impairments
Francis,David J; Fletcher,Jack M.; Stuebing,Karla K.; Lyon,G. Reid; Shaywitz,Bennett A; Shaywitz,Sally E. – Journal of Learning Disabilities, 2005
Simulated data were used to demonstrate that groups formed by imposing cut-points based on either discrepancy or low-achievement definitions of learning disabilities (LD) are unstable over time. Similar problems were demonstrated in longitudinal data from the Connecticut Longitudinal Study, where 39% of the children designated as having LD in…
Descriptors: Individual Testing, Low Achievement, Grade 5, Grade 3
