Four types of calculations are currently being used to identify discrepancies between intellectual ability and achievement. These include deviation from grade level, expectancy formulas, simple standard score differences, and regression-based differences (Fletcher et al., 1994; Gresham, 2001; Sattler, 1992; Van den Broeck, 2002).
Deisinger, J.A. (2005), "CONCEPTUALIZATIONS OF LEARNING DISABILITIES: BEYOND THE ABILITY-ACHIEVEMENT DISCREPANCY", Burkhardt, S., Obiakor, F. and Rotatori, A.F. (Ed.) Current Perspectives on Learning Disabilities (Advances in Special Education, Vol. 16), Emerald Group Publishing Limited, Bingley, pp. 1-20. https://doi.org/10.1016/S0270-4013(04)16001-7Download as .RIS
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