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Direct linkFrancis,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
