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Diagnosis of Developmental Disability: Psychometrics, Behaviour, and Etiology

Published online by Cambridge University Press:  06 October 2014

Josephine C. Jenkinson
Josephine C. Jenkinson*
Affiliation:
Deakin University
*
School of Studies in Disability, Deakin University, 221 Burwood Highway, Burwood VIC 3125, Australia
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Extract

Diagnosis of developmental disability lacks precision, partly because of differences in definitions of the concept, but largely because of problems specific to the use of psychometric measures with children who have a developmental disability. These problems arise from inadequate evidence of reliability for psychometric measures at extremes of the normal distribution, from lack of comparability between different tests and between different editions of tests, and from practical considerations in the assessment of people with various disabilities. Adaptive behaviour assessment has been introduced to supplement intelligence testing, but lack of a clear conceptualisation of this concept and doubts about the appropriateness of United States norms for Australian children add to the difficulties of interpreting results of standardised scales. Systematic assessment of behavioural problems needs to be incorporated into diagnostic procedures. This paper argues that improvements in the accuracy of diagnosis are unlikely to come from further technical advances in psychometric assessment, and suggests that diagnosis in the future should take into account new technologies which link etiology to specific behavioural patterns to supplement existing procedures.

Type
Special Series: Part 1 Developmental Disabilities
Information
Behaviour Change , Volume 14 , Issue 2 , June 1997 , pp. 60 - 72
Copyright
Copyright © The Author(s) 1997

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References

REFERENCES

Accardo, P.J., & Capute, A.J. (1996). Mental retardation. In Caputo, A.J. & Accardo, P.J. (Eds.), Developmental disabilities in infancy and childhood: Vol. II. The spectrum of developmental disabilities (pp. 211–219). Baltimore, MD: Paul H. Brookes.Google Scholar
Accardo, P.J., & Whitman, B.Y., with Laszewski, C., Haake, C., & Morrow, J.D. (1996). Dictionary of developmental disabilities terminology. Baltimore, MD: Paul H. Brookes.Google Scholar
Achenbach, T.M., & Edelbrock, C. (1991). Child Behaviour Checklist manual. Burlington, VT: University of Vermont, Department of Psychiatry.Google Scholar
Baumeister, A.A. (1984). Some methodological and conceptual issues in the study of cognitive processes with retarded people. In Brooks, P.H., Sperber, R., & McCauley, C. (Eds.), Learning and cognition in the mentally retarded (pp. 1–38). Hillsdale, NJ: Erlbaum.Google Scholar
Bruininks, R.H., Hill, B.K., Weatherman, R.F., & Woodcock, R.W. (1986). Inventory for Client and Agency Planning. Allen, TX: DLM-Teaching Resources.Google Scholar
Bruininks, R.H., Woodcock, R.W., Weatherman, R.F., & Hill, B.K. (1984). Scales of Independent Behaviour. Allen, TX: DLM-Teaching Resources.Google Scholar
de Lemos, M.M. (1989). The Vineland Adaptive Behaviour Scales: Standard score adjustments for Australian children. Psychological Test Bulletin, 2(1), 3–15.Google Scholar
de Lemos, M.M. (1990). The Stanford–Binet Intelligence Scale (Fourth Edition): Australian adaptation and trial testing. Psychological Test Bulletin, 3(1), 3–12.Google Scholar
Dykens, E. (1995). Measuring behavioural phenotypes: Provocations from the “New Genetics”. American Journal on Mental Retardation, 99, 522–532.Google Scholar
Flynn, J. (1987). Massive IQ gains in 14 nations: What IQ tests really measure. Psychological Bulletin, 101, 171–191.Google Scholar
Forceville, E.J.M., Dekker, M.J.A., Aldenkamp, A.P., Alpherts, W.C.J., & Schelvis, A.J. (1992). Subtest profiles of the WISC-R and WAIS in mentally retarded patients with epilepsy. Journal of Intellectual Disability Research, 36, 45–59.CrossRefGoogle ScholarPubMed
Fraser, F.C., & Sadovnick, A.D. (1976). Correlation of IQ in subjects with Down's syndrome and their parents and sibs. Journal of Mental Deficiency Research, 20, 179–182.Google Scholar
Fuchs, D., Fuchs, L., Benowitz, S.Y., & Barringer, K. (1987). Norm-referenced tests: Are they valid for use with handicapped students? Exceptional Children, 54, 263–271.CrossRefGoogle ScholarPubMed
Gerken, K.C., Eliason, M.J., & Arthur, C.R. (1994). The assessment of at-risk infants and toddlers with the Bayley Mental Scale and the Battelle Developmental Inventory: Beyond the data. Psychology in the Schools, 31, 181–187.Google Scholar
Harris, S.L., Handleman, J.S., & Burton, J.L. (1990). The Stanford–Binet profiles of young children with autism. Special Services in the Schools, 6, 135–143.CrossRefGoogle Scholar
Harrison, P.L. (1987). Research with adaptive behaviour scales. The Journal of Special Education, 21, 37–68.Google Scholar
Hodapp, R.M., & Dykens, E.M. (1994). Mental retardation's two cultures of behavioural research. American Journal on Mental Retardation, 98, 675–687.Google Scholar
Hubert, N.C., & Wallander, J.L. (1988). Instrument selection. In Wachs, T.D. & Sheehan, R. (Eds ), Assessment of young developmentally disabled children (pp. 43–60). New York: Plenum.CrossRefGoogle Scholar
Hudson, A., & Jauernig, R. (1995). Identification of intellectual disability: Difficulties in intelligence testing. Australian Educational and Developmental Psychologist, 12, 1–7.CrossRefGoogle Scholar
Hudson, A., & Jauernig, R. (1996). Report to the Department of Human Services on the eligibility project. Unpublished manuscript.Google Scholar
Jenkinson, J. (1996). Identifying intellectual disability: Some problems in the measurement of intelligence and adaptive behaviour. Australian Psychologist, 31, 97–102.Google Scholar
Jenkinson, J.C., & Wilson, L.J. (1996). Causes and prevention of disability. In Annison, J., Jenkinson, J., Sparrow, W., & Bethune, E. (Eds.), Disability: A guide for health professionals (pp. 90–113). Sydney: Thomas Nelson.Google Scholar
Kamphaus, R.W. (1987). Conceptual and psychometric issues in the assessment of adaptive behaviour. The Journal of Special Education, 21, 27–35.CrossRefGoogle Scholar
Kaufman, A.S., & Kaufman, N.L. (1983). Kaufman Assessment Battery for Children. Circle Pines, MN: American Guidance Service.Google Scholar
Keats, J. (1996). Assessment of intelligence: Some comments on Jenkinson, 1996. Australian Psychologist, 31, 217–218.CrossRefGoogle Scholar
Lambert, N., Nihira, K., & Leland, H. (1993). Adaptive Behaviour Scale (School Edition). Washington, DC: American Association on Mental Retardation.Google Scholar
Luckasson, R., Schalock, R.L., Snell, M.E., & Spitalnik, D.M. (1996). The 1992 AAMR definition and preschool children: Response from the Committee on Terminology and Classification. Mental Retardation, 34, 247–253.Google Scholar
Lukens, J., & Hurrell, R.M. (1996). A comparison of the Stanford-Binet IV and the WISC-III with mildly retarded children. Psychology in the Schools, 33, 24–27.Google Scholar
Morgenstern, M., & Klass, E. (1991). Standard intelligence tests and related assessment techniques. In Matson, J.L. & Mulick, J.A. (Eds.), Handbook of mental retardation (2nd ed., pp. 195–210). New York: Pergamon.Google Scholar
Phillips, S.E. (1994). High-stakes testing accommodations: Validity versus disabled rights. Applied Measurement in Education, 7, 93–129.Google Scholar
Psychological Corporation. (1995). WISC-III supplementary manual: Australian adaptation. Marrickville, NSW: Author.Google Scholar
Robinson, B.F., & Mervis, C.B. (1996). Extrapolated raw scores for the second edition of the Bayley Scales of Infant Development. American Journal on Mental Retardation, 100, 666–671.Google Scholar
Robinson, N.M., & Janos, P.M. (1987). The contribution of intelligence tests to the understanding of special children. In Day, J.D. & Borkowski, J.G. (Eds ), Intelligence and exceptionality: New directions for theory, assessment, and instructional practices (pp. 21–55). Norwood, NJ: Ablex.Google Scholar
Rynders, J.E., Spiker, D., & Horrobin, M. (1978). Underestimating the educability of Down's syndrome children: Examination of methodological problems in recent literature. American Journal of Mental Deficiency. 82, 440–448.Google Scholar
Sattler, J.M. (1993). Assessment of children: Revised and updated third edition. San Diego, CA: Author.Google Scholar
Share, J.B. (1975). Developmental progress in Down's syndrome. In Koch, R. & Cruz, F.F. de la (Eds ), Down's syndrome: Research, prevention and management (pp. 78–86). New York: Brunner/Mazel.Google Scholar
Slate, J.R., & Saarnio, D.A. (1995). Differences between WISC-III and WISC-R IQs: A preliminary investigation. Journal of Psychoeducational Assessment, 13, 340–346.Google Scholar
Sparrow, S.S., Balla, D.A., & Cicchetti, D.V. (1984). Vineland Adaptive Behaviour Scales. Circle Pines, MN: American Guidance Service.Google Scholar
Taylor, H.G. (1996). Critical issues and future directions in the development of theories, models, and measurements for attention, memory, and executive function. In Lyon, G.R. & Krasnegor, N.A. (Eds.), Attention, memory, and executive function (pp. 399–412). Baltimore, MD: Paul H. Brookes.Google Scholar
Thorndike, R.L., Hagen, E., & Sattler, J.M. (1986). Stanford–Binet fourth edition. Boston, MA: Riverside.Google Scholar
Tonge, B.J., Einfeld, S.L., Krupinski, J., Mackenzie, A., McLaughlin, M., Florio, T., & Nunn, R.J. (1996). The use of factor analysis for ascertaining patterns of psychopathology in children with intellectual disability. Journal of Intellectual Disability Research, 40, 198–207.Google Scholar
Victorian Government. (1986). Intellectually Disabled Persons' Services Act. Melbourne: Government Printer.Google Scholar
Wechsler, D. (1991). Wechsler Intelligence Scale for Children - III. San Antonio, TX: Psychological Corporation.Google Scholar
White, M.J., Nichols, C.N., Cook, R.S., Spengler, P.M., Walker, B.S., & Look, K.K. (1995). Diagnostic overshadowing and mental retardation: A meta-analysis. American Journal on Mental Retardation, 100, 293–298.Google Scholar