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ERIC Number: EJ787422
Record Type: Journal
Publication Date: 2008-Mar
Pages: 7
Abstractor: Author
Reference Count: 0
ISBN: N/A
ISSN: ISSN-0162-3257
Exploratory and Confirmatory Factor Analysis of the Autism Diagnostic Interview-Revised
Frazier, Thomas W.; Youngstrom, Eric A.; Kubu, Cynthia S.; Sinclair, Leslie; Rezai, Ali
Journal of Autism and Developmental Disorders, v38 n3 p474-480 Mar 2008
The factor structure of the Autism Diagnostic Interview-Revised (ADI-R) algorithm items was examined using exploratory (EFA) and confirmatory factor analyses (CFA) factor methods. The ADI-R was completed for 1,170 youths and adults (ages 2-46). Results of EFAs indicated strong support for two-factor structure, with social communication and stereotyped behavior factors. CFAs computed in a holdout sub-sample indicated roughly equal support for the above described two-factor model and a three factor model separating peer relationships and play from other social and communicative behaviors. Multi-group CFAs suggested that both two and three factor models showed good stability across age, with only slight changes in factor relationships. These findings indicate that the current ADI-R structure be revised to more accurately reflect the relationships between sub-scales.
Springer. 233 Spring Street, New York, NY 10013. Tel: 800-777-4643; Tel: 212-460-1500; Fax: 212-348-4505; e-mail: service-ny@springer.com; Web site: http://www.springerlink.com
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A