Psychometric properties of the Repetitive Behavior Scale-Revised for individuals with autism spectrum disorder in Japan |
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| Affiliation: | 1. Graduate School of Education, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan;2. Research Center for Child Mental Development, Hamamatsu University School of Medicine, 1-20-1 Hanadayama, Higashi-ku, Hamamatsu 431-3192, Japan;3. Faculty of Humanities, Tokaigakuen University, 2-901 Nakahira, Tenpaku-ku, Nagoya 468-8514, Japan;4. Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki 852-8520, Japan;5. Hokkaido University of Education Asahikawa Campus, 9 Hokumoncho, Asahikawa 070-8621, Japan;6. Faculty of Human and Cultural Studies, Kyoto Gakuen University, 1-1 Nanjo Otani, Sogabecho, Kameoka 621-8555, Japan;7. Faculty of Human Development and Culture, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan;8. School of Education, Tokyo Gakugei University, 4-1-1 Nukuikitamachi, Koganei 184-8501, Japan;9. Faculty of Integrated Arts and Sciences, University of Tokushima, 2-24 Shinkuracho, Tokushima 770-8501, Japan;10. Graduate School of Medical Sciences, Tottori University, 4-101 Minai, Koyamacho, Tottori 680-8550, Japan;11. School of Contemporary Sociology, Chukyo University, 101-2 Yagoto Honmachi, Showa-ku, Nagoya 466-8666, Japan;12. Department of Education, College of Staten Island of the City University of New York, 2800 Victory Boulevard, Staten Island, NY 10314, United States;13. School of Medicine, Hirosaki University, 1 Bunkyocho, Hirosaki 036-8560, Japan;14. Department of Child and Adolescent Psychiatry, Hamamatsu University School of Medicine, 1-20-1 Hanadayama, Higashi-ku, Hamamatsu 431-3192, Japan;15. United Graduate School of Child Development, Osaka University, 1-1 Yamadaoka, Suita 565-0871, Japan;p. Japan Developmental Disorders Network, 5F 1-12-14 Hamamatsucho, Minato-ku, Tokyo 105-0013, Japan;q. Department of Child Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan;1. Telethon Kids Institute, University of Western Australia, Nedlands, WA, Australia;2. Cooperative Research Centre for Living with Autism (Autism CRC), Indooroopilly, QLD, Australia;3. Olga Tennison Autism Research Centre, School of Psychology and Public Health, La Trobe University, Bundoora, VIC, Australia;4. School of Psychological Science, University of Western Australia, Crawley, WA, Australia;5. Child and Adolescent Health Service, Child Development Service, West Perth, WA, Australia;6. La Trobe Rural Health School, Bendigo, VIC, Australia;7. Australian Centre for Precision Health, School of Health Sciences, University of South Australia, Adelaide, SA, Australia;8. Children''s Neurosciences, Evelina London Children''s Hospital, Institute of Psychiatry, Psychology & Neuroscience, Kings College London, London, UK;9. Division of Neuroscience and Experimental Psychology, School of Biological Sciences, University of Manchester, Manchester, UK;10. School of Health Sciences, University of Manchester, Manchester, UK;11. Manchester Academic Health Science Centre, Manchester University NHS Foundation Trust, Greater Manchester Mental Health NHS Trust, Manchester, UK;1. Center for Mind and Brain, UC Davis, 267 Cousteau Place, Davis, CA, 95618, United States;2. Department of Psychology, UC Davis, United States;3. Center for Mind and Brain, UC Davis, United States;4. MIND Institute, UC Davis, United States |
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| Abstract: | Restricted and repetitive behaviors (RRBs) constitute a core symptom of autism spectrum disorder (ASD). The Repetitive Behavior Scale-Revised (RBS-R) is a widely used questionnaire administered by parents or caregivers to assess RRBs in individuals with ASD. This study evaluated the psychometric properties of the RBS-R Japanese Version (RBS-R-J). The ASD and non-ASD groups comprised 274 and 36 participants, respectively. We examined corrected item-total correlation, Cronbach's alpha, and RBS-R-J scores of different diagnostic groups, as well as correlations between RBS-R-J scores and intelligence quotient (IQ), autistic symptoms, adaptive/maladaptive functioning, aberrant behaviors, and sensory processing. All items showed moderate corrected item-total correlations. Cronbach's alpha coefficient was .93. We found significant differences in the mean RBS-R-J scores of the low-functioning ASD group and the intellectual disabilities group, and of low-functioning and high-functioning ASD groups. RBS-R-J scores negatively correlated with IQ and scores on the Sensory Profile (Japanese version) and Adaptive Behavior Composite of the Maladaptive Behavior Index of the Vineland Adaptive Behavior Scales-Second Edition (VABS-II; Japanese version), but positively correlated with scores on the peak and current symptoms subscales of the Pervasive Developmental Disorders Autism Society Japan Rating Scale, the VABS-II, and the Aberrant Behavior Checklist-Community (Japanese version). From these results, we conclude that RBS-R-J showed good reliability, diagnostic validity, and convergent validity, indicating that it is a reliable, valid instrument for use among ASD individuals in clinical and research settings. |
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| Keywords: | Restricted and repetitive behaviors Autism spectrum disorder Repetitive Behavior Scale-Revised Japanese Version Reliability Validity |
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