Validating the Repetitive Behavior Scale-Revised for Children in China Aged 3 to 8 with Autism Spectrum Disorder

Research on the repetitive behavior of children diagnosed with autism spectrum disorder (ASD) has recently gained scholarly attention. Restricted and repetitive behavior (RRB) is a core ASD symptom of various patterns and high prevalence. The Repetitive Behavior Scale-Revised (RBS-R) is a standard questionnaire used to assess RRB in individuals with ASD. This study collected data from 163 Chinese children aged 3–8 with ASD to analyze the validity and reliability of the RBS-R. Results showed that the original tested items were adaptable to the Chinese cultural environment when treating such disorders. A confirmatory factor analysis was applied to the structuring models, indicating that a 5-factor model was more suitable for evaluating RRB in this context.