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Stock, Pieter; Desoete, Annemie; Roeyers, Herbert – Journal of Learning Disabilities, 2010
In a 3-year longitudinal study, 471 children were classified, based on their performances on arithmetic tests in first and second grade, as having persistent arithmetic disabilities (AD), persistent low achieving (LA), persistent typical achieving, inconsistent arithmetic disabilities (DF1), or inconsistent low achieving in arithmetic. Significant…
Descriptors: Low Achievement, Arithmetic, Learning Disabilities, Age Differences