The Repetitive Behavior Scale-Revised: Independent Validation in Individuals with Autism Spectrum Disorders
Publication Type: |
Journal Article |
Year of Publication: |
2006 |
Authors: |
Kristen S. L. Lam, Michael G. Aman |
Publication/Journal: |
Journal of Autism and Developmental Disorders |
Keywords: |
assessment, autism, rating scale, repetitive behavior, repetitive behaviour, stereotypies |
ISBN: |
0162-3257 1573-3432 |
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.