Two key concepts in diagnosing learning disabilities (“severe discrepancy” and “process dysfunction”) are reviewed and their relationship to the habilitation of learning is discussed. Specific guidelines are delineated for correctly calculating a severe discrepancy between an individual's age and ability and level of academic attainment. Methods and reasons for evaluating processing skills are also discussed. Process models of deficit-centered remediation are dismissed in favor of strength models of remediation.
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References
1.
American Psychiatric Press. (1987). Diagnostic and statistical manual of mental disorders, third edition-revised. DSM-III-R. Washington, DC: Author.
2.
AngoffW. H. (1971). Scales, norms, and equivalent scores. In ThorndikeR. L. (Ed.), Educational measurement (2nd ed., pp. 601–624). Washington, DC: American Council on Education.
3.
BerkR. A. (1984). Screening and diagnosis of children with learning disabilities. Springfield, IL: Charles C. Thomas.
4.
ChalfantJ. C. (1987). Learning disabilities, problems in definition of. In ReynoldsC. R.MannL. (Eds.), Encyclopedia of special education (pp. 925–929). New York: Wiley.
5.
CronbachL. J.SnowR. (1977). Aptitudes and instructional methods. New York: Irvington.
6.
DanielsonL. C.BauerJ. W. (1978). A formula-based classification of learning disabled children: An examination of the issues. Journal of Learning Disabilities, 11, 163–176.
7.
Federal Register. (1977). 42, 65082.
8.
HartlageL. C.ReynoldsC. R. (1981). Neuropsychological assessment and the individualization of instruction. In HyndG.ObrzutJ. (Eds.), Neuropsychological assessment of the school- aged child. Issues and procedures (pp. 355–378). New York: Grune & Stratton.
9.
HaynesM. C.JenkinsJ. R. (1986). Reading instruction in special education resource rooms. American Educational Research Journal, 23, 161–190.
10.
HaywoodH. C.SwitskyH. N. (1986). The malleability of intelligence: Cognitive processes as a function of polygenic experiential interaction. School Psychology Review, 15(2), 245–255.
11.
HellerK. A.HoltzmanW. H.MessickS. (Eds.). (1982). Placing children in special education: A strategy for equity (Report of the National Academy of Sciences' Panel on Selection and Placement of Students in Programs for the Mentally Retarded). Washington, DC: National Academy Press.
12.
HungS. S.WalbergH. J. (1986). General linear models of individual differences. In ReynoldsC. R.WillsonV. L. (Eds.), Methodological and statistical advances in the study of individual differences (pp. 297–334). New York: Plenum Press.
13.
HyndG. W.WillisW. G. (1988). Pediatric neuropsychology. New York: Grune & Stratton.
14.
IrvineP. (1987). Broca, Pierre Paul (1824–1880). In ReynoldsC. R.MannL. (Eds.), Encyclopedia of special education (p. 25). New York: Wiley.
15.
KamphausR. W.ReynoldsC. R. (1987). Clinical and research applications of the K-ABC. Circle Pines, MN: American Guidance Service.
16.
KaufmanA. S. (1979). Intelligent testing with the WISC-R. New York: Wiley.
17.
KaufmanA. S. (1990). Assessing adolescent and adult intelligence. Boston: Allyn & Bacon.
18.
KaufmanA. S.KaufmanN. L. (1977). Clinical evaluation of young children with the McCarthy scales. New York: Grune & Stratton.
19.
KirkS.McCarthyJ.KirkW. (1968). Illinois test of psycholinguistic abilities. Urbana, IL: University of Illinois Press.
20.
MannL. (1979). On the trail of process. New York: Grune & Stratton.
21.
McLoughlinJ. A. (1987). Learning disabilities. In ReynoldsC. R.MannL. (Eds.), Encyclopedia of special education (pp. 921–925). New York: Wiley.
22.
PayneR. W.JonesH. G. (1957). Statistics for the investigation of individual cases. Journal of Clinical Psychology, 13, 115–121.
23.
PhillipsB. N. (1986). New directions in aptitude-treatment interaction research: Concepts and methods. In ReynoldsC. R.WillsonV. L. (Eds.), Methodological and statistical advances in the study of individual differences (pp. 241–274). New York: Plenum Press.
24.
ReynoldsC. R. (1981a). The fallacy of “two years below grade level for age” as a diagnostic criterion for reading disorders. Journal of School Psychology, 19, 350–358.
25.
ReynoldsC. R. (1981b). Neuropsychological assessment and the habilitation of learning: Considerations in the search for the aptitude X treatment interaction. School Psychology Review, 10(3), 343–349.
26.
ReynoldsC. R. (1981c). The neuropsychological basis of intelligence. In HyndG.ObrzutJ. (Eds.), Neuropsychological assessment of the school-aged child: Issues and procedures (pp. 84–124). New York: Grune & Stratton.
27.
ReynoldsC. R. (1984–85). Critical measurement issues in learning disabilities. Journal of Special Education, 18(4), 451–476.
28.
ReynoldsC. R. (1985). Measuring the aptitude-achievement discrepancy in learning disabilities diagnosis. Remedial and Special Education, 6, 37–55.
29.
ReynoldsC. R. (1986). Transactional models of intellectual development, yes. Deficit models of process remediation, no. School Psychology Review, 15(2), 256–260.
30.
ReynoldsC. R. (1987). Intelligent testing. In ReynoldsC. R.MannL. (Eds.), Encyclopedia of special education (pp. 855–857). New York: Wiley.
31.
ReynoldsC. R. (1988). Putting the individual into the aptitude-treatment interaction. Exceptional Children, 54(4), 324–331.
32.
ReynoldsC. R.BiglerE. D. (in press). TOMAL: Test of memory and learning, manual. Austin, TX: PRO-ED.
33.
ReynoldsC. R.ClarkJ. H. (1982). Cognitive assessment of the preschool child. In BrackenB.PagetK. (Eds.), Psychoeducational assessment of the preschool and primary-aged child (pp. 163–189). New York: Grune & Stratton.
34.
ReynoldsC. R.HickmanJ. A. (1987). Remediation, deficit-centered models of. In ReynoldsC. R.MannL. (Eds.), Encyclopedia of special education (pp. 855–857). New York: Wiley.
35.
ReynoldsC. R.KaufmanA. S. (1986). Clinical assessment of children's intelligence with the Wechsler scales. In WolmanB. (Ed.), Handbook of intelligence (pp. 601–662). New York: Wiley.
36.
SchmidtF. L. (1974). Probability and utility assumptions underlying use of the Strong Vocational Interest Blank. Journal of Applied Psychology, 4, 456–464.
37.
SwansonH. L. (in press). Verbal coding deficits in learning disabled readers: A multiple-stage model. Educational Psychology Review.
38.
WillsonV. L. (1986). Analysis of interactions in aptitude-treatment interaction research. In ReynoldsC. R.WillsonV. L. (Eds.), Methodological and statistical advances in the study of individual differences (pp. 275–296). New York: Plenum Press.
