학술논문
Validity of the Autism Diagnostic Interview-Revised
Document Type
Journal Articles
Reports - Research
Reports - Research
Author
Lecavalier, Luc; Aman, Michael G.; Scahill, Lawrence; McDougle, Christopher J.; McCracken, James T.; Vitiello, Benedetto; Tierney, Elaine; Arnold, L. Eugene; Ghuman, Jaswinder K.; Loftin, Rachel L.; Cronin, Pegeen; Koenig, Kathleen; Posey, David J.; Martin, Andres; Hollway, Jill; Lee, Lisa S.; Kau, Alice S. M.
Source
Subject
Language
English
ISSN
0895-8017
Abstract
The factor structure, internal consistency, and convergent validity of the Autism Diagnostic Interview-Revised (ADI-R) algorithm items were examined in a sample of 226 youngsters with pervasive developmental disabilities. Exploratory factor analyses indicated a three-factor solution closely resembling the original algorithm and explaining 38% of the variance, with one significant discrepancy: Unlike the algorithm, all nonverbal communication items were associated with the Social factor. Internal consistencies of domain scores ranged from 0.54 to 0.84. Correlations between ADI-R domain and total scores and instruments assessing adaptive behavior, psychopathology, and autism were examined. They indicated some similarities between constructs, but also that the ADI-R measures autism in a unique fashion.