Journal article
The validity of autistic spectrum disorders: A literature review
Abstract
The objective of this literature review is to assess the validity of autistic spectrum disorders (ASD). Twenty papers were identified that adequately investigated the internal or external validity of various subtypes of ASD. At least three groups can be distinguished from autism on clinical grounds; an Asperger syndrome subtype, and two atypical subtypes characterized by low IQ and high IQ. However, the evidence that these clinical distinctions …
Authors
Szatmari P
Journal
Journal of Autism and Developmental Disorders, Vol. 22, No. 4, pp. 583–600
Publisher
Springer Nature
Publication Date
December 1992
DOI
10.1007/bf01046329
ISSN
0162-3257