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Willcutt, Erik G.; McGrath, Lauren M.; Pennington, Bruce F.; Keenan, Janice M.; DeFries, John C.; Olson, Richard K.; Wadsworth, Sally J. – New Directions for Child and Adolescent Development, 2019
Current definitions of specific learning disability (SLD) identify a heterogeneous population that includes individuals with weaknesses in reading, math, or writing, and these academic difficulties often co-occur in many of the same individuals. The Colorado Learning Disabilities Research Center (CLDRC) is an interdisciplinary, multisite research…
Descriptors: Comorbidity, Learning Disabilities, Twins, Reading Difficulties

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