Abstract
Diagnoses for autism based on the Autism Diagnostic Interview-Revised (ADI-R) and the Childhood Autism Rating Scale (CARS) were examined for 83 individuals with suspected autism. Agreement between systems reached 85.7%. Participants receiving diagnosis of autism based on only one system were significantly younger in age than individuals receiving diagnoses according to both systems. Individuals who did not receive diagnosis of autism on the ADI-R had lower chronological and mental ages and lower CARS scores compared to individuals who received diagnosis of autism based on the ADI-R. Eighteen females and 18 males were matched to examine possible gender differences. No significant findings were revealed, suggesting that the symptoms of autism according to the ADI-R and CARS do not differ between males and females when matched for chronological and mental ages.
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REFERENCES
Cattell, P. (1960). The measurement of intelligence of infants and young children-Revised. New York: Psychological Corp.
Coleman, M. (1978). A report on the autistic syndromes. In M. Rutter & E. Schopler (Eds.), Autism: A reappraisal of concepts and treatment. New York: Plenum Press.
DiLalla, D. L., & Rogers, S. J. (1994). Domains of the Childhood Autism Rating Scale: Relevance for diagnosis and treatment. Journal of Autism and Developmental Disorders, 24, 115–128.
Fleiss, J. L. (1981). Balanced incomplete block designs for interrater reliability studies. Applied Psychological Measurements, 5, 105–112.
Krug, D. A., Arick, J. R., & Almond, P. J. (1980). Autism screening instrument for educational planning. Portland, OR: ASIEP.
Le Couteur, A., Rutter, M., Lord, C., Rios, P., Robertson, S., Holdgrafer, M., & McLennan, J. D. (1989). Autism Diagnostic Interview-Revised. Journal of Autism and Developmental Disorders, 19, 363–389.
Lord, C., Goode, S., Rutter, M., & Schopler, E. (1989). Sex differences in autism. International Journal of Rehabilitation Research, 12(1), 113–114.
Lord, C., Mulloy, C., Wendelboe, M., & Schopler, E. (1991). Preand perinatal factors in high-functioning females and males with autism. Journal of Autism and Developmental Disorders, 21(2), 197–209.
Lord, C., Rutter, M., Goode, S., Heemsbergen, J., Jordan, H., Mawood, L., & Schopler, E. (1989). Autism Diagnostic Observation Schedule: A standardized observation of communicative and social behavior. Journal of Autism and Developmental Disorders, 19, 185–212.
Lord, C., Rutter, M., & Le Couteur, A. (1994). Autism Diagnostic Interview-Revised: A revised version of a diagnostic interview for caregivers of individuals with possible pervasive developmental disorders. Journal of Autism and Developmental Disorders, 24, 659–685.
Lord, C., & Schopler, E. (1985). Brief report: Differences in sex ratios in autism as a function of measured intelligence. Journal of Autism and Developmental Disorders, 15, 185–193.
Lord, C., Schopler, E., & Revicki, D. (1982). Sex differences in autism. Journal of Autism and Developmental Disorders, 12, 317–330.
Mesibov, G. B., Schopler, E., Schaffer, B., & Michal, N. (1989). Use of the Childhood Autism Rating Scale with autistic adolescents and adults. Journal of American Academy of Child and Adolescent Psychiatry, 28, 538–541.
Schopler, E., Reichler, R. J., DeVellis, R. F., & Daly, K. (1980). Toward objective classification of childhood autism: Childhood Autism Rating Scale (CARS). Journal of Autism and Developmental Disorders, 10, 91–103.
Schopler, E., Reichler, R. J., & Rocher-Renner, B. (1988). The Childhood Autism Rating Scale (CARS). Los Angeles: Western Psychological Services.
Sevin, J. A., Matson, J. L., Coe, D. A., Fee, V. E., & Sevin, B. M. (1991). A comparison and evaluation of three commonly used autism scales. Journal of Autism and Developmental Disorders, 21, 417–432.
Teal, M. B., & Weibe, M. J. (1986). A validity analysis of selected instruments used to assess autism. Journal of Autism and Developmental Disorders, 16, 485–494.
Thorndike, R., Hagan, E., & Sattler, J. (1986). Stanford Binet Intelligence Scale: Guide for administrating and scoring (4th ed.). Chicago: Riverside.
Tsai, I., Stewart, M. A., & August, G. (1981). Implications of sex differences in the familial transmission of infantile autism. Journal of Autism and Developmental Disorders, 11, 165–173.
Volkmar, F. R., Cicchetti, D. V., Dykens, E., Sparrow, S. S., Leckman, T. F., & Cohen, D. J. (1988). An evaluation of the autism behavior checklist. Journal of Autism and Developmental Disorders, 18, 81–97.
Volkmar, F. R., Szatmari, P., & Sparrow, S. S. (1993). Sex differences in pervasive developmental disorders. Journal of Autism and Developmental Disorders, 23, 579–591.
Wechsler, D. (1963). WPPSI Manual: Wechsler Preschool and Prima Scale of Intelligence. San Antonio, TX: Psychological Corp.
Wechsler, D. (1974). Wechsler Intelligence Scale for Children-Revised. New York: Psychological Corp.
Wechsler, D. (1981). WAIS-R manual: Wechsler Intelligence Scale for Children-Revised. San Antonio, TX: Psychological Corp.
Wing, L. (1981). Sex ratios in early childhood autism and related conditions. Psychiatry Research, 5, 129–137.
Wing, L., & Gould, J. (1978). Systematic recording of behaviors and skills of retarded and psychotic children. Journal of Autism and Childhood Schizophrenia, 8, 79–98.
World Health Organization. (1992). ICD-10 Classification of mental and behavioral disorders: Clinical descriptions and diagnostic guidelines. Geneva: Author.
Yirmiya, N., Shulman, C., & Arbelle, S. (1996). Hebrew version of the Autism Diagnostic Interview-Revised. Available by request from the authors.
Yirmiya, N., Sigman, M., & Freeman, B. J. (1994). Comparison between diagnostic instruments for identifying high-functioning children with autism. Journal of Autism and Developmental Disorders, 24, 281–291.
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Pilowsky, T., Yirmiya, N., Shulman, C. et al. The Autism Diagnostic Interview-Revised and the Childhood Autism Rating Scale: Differences Between Diagnostic Systems and Comparison Between Genders. J Autism Dev Disord 28, 143–151 (1998). https://doi.org/10.1023/A:1026092632466
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DOI: https://doi.org/10.1023/A:1026092632466