title: Factor analysis of the aberrant behavior checklist in individuals with autism spectrum disorders.
abstract: Exploratory factor analysis (varimax and promax rotations) of the aberrant behavior checklist-community version (ABC) in 275 individuals with Autism spectrum disorder (ASD) identified four- and five-factor solutions which accounted for >70% of the variance. Confirmatory factor analysis (Lisrel 8.7) revealed indices of moderate fit for the five-factor solution. Our results suggest that the factor structure of the ABC is robust within an ASD sample. Both solutions yielded a three items self-injury factor. Stratifying on this factor, we identified significant differences between the high- and low-self injury groups on ABC subscales. The emergence of a self-injury factor, while not suggestive of a new subscale, warrants further exploration as a tool that could help dissect relevant neurobiobehavioral groups in ASD.
authors.affiliation: Center for Human Genetics, Duke University Medical Center, DUMC Box 3445, Durham, NC 27710, USA.
authors.forename: Jason
authors.initials: J
authors.lastname: Brinkley
authors.forename: Laura
authors.initials: L
authors.lastname: Nations
authors.forename: Ruth K
authors.initials: RK
authors.lastname: Abramson
authors.forename: Alicia
authors.initials: A
authors.lastname: Hall
authors.forename: Harry H
authors.initials: HH
authors.lastname: Wright
authors.forename: Robin
authors.initials: R
authors.lastname: Gabriels
authors.forename: John R
authors.initials: JR
authors.lastname: Gilbert
authors.forename: Margaret A O
authors.initials: MA
authors.lastname: Pericak-Vance
authors.forename: Michael L
authors.initials: ML
authors.lastname: Cuccaro
mesh_terms: D000293:Adolescent; D000328:Adult; D001321:Autistic Disorder / Q000175:diagnosis* / Q000235:genetics / Q000523:psychology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006948:Hyperkinesis / Q000175:diagnosis / Q000235:genetics / Q000523:psychology; D007360:Intelligence; D007398:Interpersonal Relations; D007508:Irritable Mood; D007805:Language Development Disorders / Q000175:diagnosis / Q000235:genetics / Q000523:psychology; D053609:Lethargy; D008297:Male; D010552:Personality Assessment / Q000706:statistics & numerical data*; D011594:Psychometrics; D015203:Reproducibility of Results; D012917:Social Adjustment; D012920:Social Behavior Disorders / Q000175:diagnosis* / Q000235:genetics / Q000523:psychology; D013064:Speech Disorders / Q000175:diagnosis / Q000235:genetics / Q000523:psychology; D013239:Stereotyped Behavior