Data from several psychometric variables was collected for 24 autistic children from a multidisciplinary center in Calgary, Alberta. The purpose of this study was to explore the underlying nature of autism. Variables were factor and duster analyzed to discover underlying structures of the disorder and to empirically derive homogeneous subtypes of children with a diagnosis of autism. Factor analysis indicated a 4 factor solution to account for the variance among variables. The groups were subsequently labeled Social Cognition, Language, Deviant Behavior, and Developmental. The clustering solution indicated the presence of two distinct groups labeled Low Functioning and High Functioning. Validity checks confirmed significance between group differences on measures of overall development, socinl functioning, and behaviors. The potential utility of empirical research is discussed along with limitations of the present study and suggestions for future research.
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