Abstract
The current study tested several competing models of the autism phenotype using data from modules 1 and 3 of the ADOS. Participants
included individuals with ASDs aged 3–18 years (N = 1,409) from the AGRE database. Confirmatory factor analyses were performed on total samples and subsamples based on age
and level of functioning. Three primary models were tested, including a one-factor model, the DSM-IV model, and the anticipated
DSM-V model. Results indicated all models fit similarly. Module 1 ratings yielded better indices of fit across all models
and higher inter-factor correlations than Model 3. Model fits were impacted by age and level of functioning. The lack of differentiation
between models suggests that the structure of ASD symptoms is complex to measure statistically.
included individuals with ASDs aged 3–18 years (N = 1,409) from the AGRE database. Confirmatory factor analyses were performed on total samples and subsamples based on age
and level of functioning. Three primary models were tested, including a one-factor model, the DSM-IV model, and the anticipated
DSM-V model. Results indicated all models fit similarly. Module 1 ratings yielded better indices of fit across all models
and higher inter-factor correlations than Model 3. Model fits were impacted by age and level of functioning. The lack of differentiation
between models suggests that the structure of ASD symptoms is complex to measure statistically.
- Content Type Journal Article
- Category Original Paper
- Pages 1-12
- DOI 10.1007/s10803-011-1348-0
- Authors
- Megan Norris, Nisonger Center and Department of Psychology, The Ohio State University, Nisonger Center, 305 McCampbell Hall, 1581 Dodd Drive, Columbus, OH 43210, USA
- Luc Lecavalier, Nisonger Center and Department of Psychology, The Ohio State University, Nisonger Center, 305 McCampbell Hall, 1581 Dodd Drive, Columbus, OH 43210, USA
- Michael C. Edwards, Nisonger Center and Department of Psychology, The Ohio State University, Nisonger Center, 305 McCampbell Hall, 1581 Dodd Drive, Columbus, OH 43210, USA
- Journal Journal of Autism and Developmental Disorders
- Online ISSN 1573-3432
- Print ISSN 0162-3257