TY - JOUR AU1 - Freeman, B. AU2 - Schroth, P. AU3 - Ritvo, E. AU4 - Guthrie, D. AU5 - Wake, L. AB - Journal of Autism and Developmental Disorders, VoL 10, No. 3, 1980 Brief Report The Behavior Observation Scale for Autism (BOS): Initial Results of Factor Analyses I B. J. Freeman, 2 P. Schroth, E. Ritvo, D. Guthrie, and L. Wake University of California, Los Angeles Since the syndrome of autism was first described by Kanner (1943), there have been many attempts to specify objectively the behaviors that a child must exhibit in order to receive the diagnosis. However, before objective diagnostic criteria can be specified, it is first necessary to determine which, if any, of the various behaviors observed in the repertoire of autistic children are in fact unique to the syndrome and which are simply the result of maturation and/or delayed development (Freeman, Ritvo, Guthrie, Schroth, & Ball, 1978). There are at least two reasons why this distinction is critical in understanding the diagnosis and etiology of autism. The purpose of this paper is to examine and attempt to define groups of behaviors that will empirically describe autistic, mentally retarded, and normal children. The data were obtained as part of a large research project, the Behavior Observation Scale (BOS), which has as its ultimate goal developing objective diagnostic criteria TI - The Behavior Observation Scale for autism (BOS): Initial results of factor analyses JF - Journal of Autism and Developmental Disorders DO - 10.1007/BF02408293 DA - 2006-04-17 UR - https://www.deepdyve.com/lp/springer-journals/the-behavior-observation-scale-for-autism-bos-initial-results-of-LARiVW6lsx SP - 343 EP - 346 VL - 10 IS - 3 DP - DeepDyve ER -