American Psychiatric Association (1980).Diagnostic and statistical manual of mental disorders (3rd ed.). Washington, DC: Author.
Cicchetti, D. V., & Sparrow, S. S. (1981). Developing criteria for establishing interrater reliability of specific items in a given inventory.American Journal of Mental Deficiencies, 86, 127–137.
Cohen, D. J., Paul, R., & Volkmar, F. R. (1986). Issues in the classification of pervasive and other developmental disorders: Toward DSM IV.Journal of the American Academy of Child and Adolescent Psychiatry, 25, 213–220.
Deckner, C. W., Soraci, S. A., Deckner, P. O., & Blanton, R. L. (1981). Consistency among commonly used procedures for assessment of abnormal children.Journal of Clinical Psychology, 37, 856–862.
DeMyer, M. K., Hingtgen, J. N., & Jackson, R. K. (1981). Infantile autism reviewed: A decade of research.Schizophrenia Bulletin, 7, 388–451.
Fein, D., Pennington, B., Markowitz, P., Braverman, M., & Waterhouse, L. (1986). Toward a neuropsychological model of infantile autism: Are the social deficits primary?Journal of the American Academy of Child and Adolescent Psychiatry, 25, 198–212.
Freeman, B. J., Ritvo, E. R., Yokota, A., Childs, J., & Pollard, J. (1988). Wisc-R and Vineland Adaptive Behavior Scale scores in autistic children.Journal of the American Academy of Child and Adolescent Psychiatry, 27, 428–429.
Frith, U. (1989). A new look at language and communication in autism.British Journal of Disorders of Communication, 24, 123–150.
Hobson, R. P. (1986a). The autistic child's appraisal of expressions of emotion.Journal of Child Psychology and Psychiatry, 27, 321–347.
Hobson, R. P. (1986b). The autistic child's appraisal of expressions of emotions: A further study.Journal of Child Psychology and Psychiatry, 27, 671–680.
Hollingshead, A. B. (1975).Four factor index of social status. Unpublished manuscript, Yale University, New Haven, CT.
Howling, P. (1989). Changing approaches to communication training with autistic children.British Journal of Disorders of Communication, 24, 151–168.
Jacobson, J. W., & Ackerman, L. J. (1990). Differences in adaptive functioning among people with autism or mental retardation.Journal of Autism and Developmental Disorders, 20, 205–219.
Kanner, L. (1943). Autistic disturbances of affective contact.Nervous Child, 2, 227–250.
Loveland, K. A., & Kelley, M. L. (1988). Development of adaptive behavior in adolescents and young adults with autism and Down syndrome.American Journal on Mental Retardation, 93, 84–92.
Morgan, S. B. (1984). Early childhood autism: Cognitive-developmental perspectives. In J. B. Gholson, & T. L. Rosenthal (Eds.),Applications of cognitive-developmental theory. New York: Academic Press.
Morgan, S. B. (1986). Autism and Piaget's theory: Are the two compatible?Journal of Autism and Developmental Disorders, 16, 441–457.
Morgan, S. B. (1988). Diagnostic assessment of autism: A review of objective scales.Journal of Psychoeducational Assessment, 6, 139–151.
Ornitz, E. M., Gutherie, D., & Farley, A. H. (1977). Early development of autistic children.Journal of Autism and Childhood Schizophrenia, 7, 207–229.
Parks, S. L. (1983). The assessment of autistic children: A selective review of available instruments.Journal of Autism and Developmental Disorders, 13, 255–267.
Rodrigue, J. R., Morgan, S. B., & Geffken, G. (1990). Families of autistic children: Psychosocial functioning of mothers.Journal of Clinical Child Psychology, 19, 371–379.
Rutter, M. (1983). Cognitive defects in the pathogenesis of autism.Journal of Child Psychology and Psychiatry, 24, 513–531.
Rutter, M., & Garmezy, N. (1983). Developmental psychopathology. In E. M. Hetherington (Ed.),Handbook of child psychology (Vol. 4, pp. 775–911). New York: Wiley.
Rutter, M., & Schopler, E. (1987). Autism and pervasive developmental disorders: Concepts and diagnostic issues.Journal of Autism and Developmental Disorders, 17, 159–186.
Siegel, S. (1956).Nonparametric statistics for the behavioral sciences. New York: McGraw-Hill.
Sigman, M., & Ungerer, J. A. (1984). Cognitive and language skills in autistic, mentally retarded, and normal children.Developmental Psychology, 20, 293–302.
Sparrow, S., Balla, D., & Cicchetti, D. (1984).Vineland Adaptive Behavior Scales (Survey Form). Circle Pines, MN: American Guidance Service.
Ungerer, J., & Sigman, M. (1981). Symbolic play and language comprehension in autistic children.Journal of the American Academy of Child and Adolescent Psychiatry, 20, 318–377.
Volkmar, F. R., Sparrow, S. S., Goudreau, D., Cicchetti, D. V., Paul, R., & Cohen, D. J. (1987). Social deficits in autism: An operational approach using the Vineland Adaptive Behavior Scales.Journal of the American Academy of Child and Adolescent Psychiatry, 26, 156–161.
Wenar, G., Ruttenberg, B. A., Kalish-Weis, B., & Wolf, E. G. (1986). The development of normal and autistic children: A comparative study.Journal of Autism and Developmental Disorders, 16, 317–333.
Wing, L., & Gould, J. (1979). Severe impairments of social interaction and associated abnormalities in children: Epidemiology and classification.Journal of Autism and Developmental Disorders, 9, 11–30.