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Willcutt, Erik G.; Petrill, Stephen A.; Wu, Sarah; Boada, Richard; DeFries, John C.; Olson, Richard K.; Pennington, Bruce F. – Journal of Learning Disabilities, 2013
Reading disability (RD) and math disability (MD) frequently co-occur, but the etiology of this comorbidity is not well understood. Groups with RD only (N = 241), MD only (N = 183), and RD + MD (N = 188) and a control group with neither disorder (N = 411) completed a battery of measures of internalizing and externalizing psychopathology, social and…
Descriptors: Comorbidity, Reading Difficulties, Behavior Disorders, Psychopathology
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Vaughn, Sharon; Wexler, Jade; Leroux, Audrey; Roberts, Greg; Denton, Carolyn; Barth, Amy; Fletcher, Jack – Journal of Learning Disabilities, 2012
The authors report the effects of a yearlong, very small-group, intensive reading intervention for eighth-grade students with serious reading difficulties who had demonstrated low response to intervention (RTI) in both Grades 6 and 7. At the beginning of Grade 6, a cohort of students identified as having reading difficulties were randomized to…
Descriptors: Response to Intervention, Reading Difficulties, Reading Comprehension, Effect Size