Psychometric properties of the Repetitive Behavior Scale-Revised for individuals with autism spectrum disorder in Japan

Naoko Inada, Hiroyuki Ito, Kazuhiro Yasunaga, Miho Kuroda, Ryoichiro Iwanaga, Taku Hagiwara, Iori Tani, Ryoji Yukihiro, Tokio Uchiyama, Kei Ogasahara, Koichi Hara, Masahiko Inoue, Takashi Murakami, Fumio Someki, Kazuhiko Nakamura, Toshiro Sugiyama, Hiroyuki Uchida, Hironobu Ichikawa, Yuki Kawakubo, Yukiko KanoMasatsugu Tsujii

Research output: Contribution to journalArticle

8 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)60-68
Number of pages9
JournalResearch in Autism Spectrum Disorders
Volume15-16
DOIs
Publication statusPublished - Jun 1 2015

All Science Journal Classification (ASJC) codes

  • Developmental and Educational Psychology
  • Clinical Psychology
  • Psychiatry and Mental health

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    Inada, N., Ito, H., Yasunaga, K., Kuroda, M., Iwanaga, R., Hagiwara, T., Tani, I., Yukihiro, R., Uchiyama, T., Ogasahara, K., Hara, K., Inoue, M., Murakami, T., Someki, F., Nakamura, K., Sugiyama, T., Uchida, H., Ichikawa, H., Kawakubo, Y., ... Tsujii, M. (2015). Psychometric properties of the Repetitive Behavior Scale-Revised for individuals with autism spectrum disorder in Japan. Research in Autism Spectrum Disorders, 15-16, 60-68. https://doi.org/10.1016/j.rasd.2015.01.002