title: The Repetitive Behavior Scale-Revised: independent validation in individuals with autism spectrum disorders.
abstract: A key feature of autism is restricted repetitive behavior (RRB). Despite the significance of RRBs, little is known about their phenomenology, assessment, and treatment. The Repetitive Behavior Scale-Revised (RBS-R) is a recently-developed questionnaire that captures the breadth of RRB in autism. To validate the RBS-R in an independent sample, we conducted a survey within the South Carolina Autism Society. A total of 320 caregivers (32%) responded. Factor analysis produced a five-factor solution that was clinically meaningful and statistically sound. The factors were labeled "Ritualistic/Sameness Behavior," "Stereotypic Behavior," "Self-injurious Behavior," "Compulsive Behavior," and "Restricted Interests." Measures of internal consistency were high for this solution, and interrater reliability data suggested that the RBS-R performs well in outpatient settings.
authors.affiliation: Neurodevelopmental Disorders Research Center, University of North Carolina at Chapel Hill, CB# 3367, Chapel Hill, NC 27599-3367, USA. kristen_lam@med.unc.edu
authors.forename: Kristen S L
authors.initials: KS
authors.lastname: Lam
authors.forename: Michael G
authors.initials: MG
authors.lastname: Aman
mesh_terms: D000293:Adolescent; D000328:Adult; D001321:Autistic Disorder / Q000453:epidemiology*; D002648:Child; D002653:Child Behavior Disorders / Q000175:diagnosis* / Q000453:epidemiology*; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D015588:Observer Variation; D010507:Periodicity; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires