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Direct linkMaehler, Claudia; Schuchardt, K. – Journal of Intellectual Disability Research, 2009
Background: Children with learning disabilities are identified by their severe learning problems and their deficient school achievement. On the other hand, children with sub-average school achievement "and" sub-average intellectual development are thought to suffer from a general intellectual delay rather than from specific learning disabilities.…
Descriptors: Control Groups, Intelligence, Learning Problems, Learning Disabilities
Peer reviewedLevinson, Elizabeth J. – Child Development, 1971
Descriptors: Concept Formation, Control Groups, Definitions, Intellectual Development
