Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/26730
Title: Cluster analysis of autism spectrum disorder symptomatology: Qualitatively distinct subtypes or quantitative degrees of severity of a single disorder?
Contributor(s): Bitsika, Vicki (author); Arnold, Wayne M (author); Sharpley, Christopher F (author)orcid 
Publication Date: 2018-05
DOI: 10.1016/j.ridd.2018.03.006
Handle Link: https://hdl.handle.net/1959.11/26730
Abstract: The decision to collapse several related disorders into a single diagnosis of Autism SpectrumDisorder (ASD) generated significant controversy and debate. There has been mixed evidence asto whether various ASD subtypes are qualitatively distinct or if they exist on a spectrum ofsymptom severity. The present study conducted a two-step cluster analysis of major ASDsymptoms in a sample of 147 young males with ASD aged between 6yr and 18yr with IQ > 70.Results indicated that a two-cluster solution (high and low severity of ASD symptomatology) wasreliable and valid. Further, the construct of challenging behaviour was not a necessary compo-nent of the two-cluster solution, verifying the new conceptualisation of ASD. Further replicationof thesefindings with other subsets of individuals with ASD is needed.
Publication Type: Journal Article
Source of Publication: Research in Developmental Disabilities, v.76, p. 65-75
Publisher: Pergamon Press
Place of Publication: United Kingdom
ISSN: 0891-4222
1873-3379
Field of Research (FOR): 110999 Neurosciences not elsewhere classified
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article
School of Science and Technology

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