Journal of Autism and Developmental Disorders

, Volume 37, Issue 3, pp 491–500 | Cite as

The Autism-Spectrum Quotient (AQ) Children’s Version in Japan: A Cross-Cultural Comparison

  • Akio WakabayashiEmail author
  • Simon Baron-Cohen
  • Tokio Uchiyama
  • Yuko Yoshida
  • Yoshikuni Tojo
  • Miho Kuroda
  • Sally Wheelwright
Original Paper


In the current study, the child AQ was administered in Japan, to examine whether the UK results for reliability and validity generalize to a different culture. Assessment groups were: Group 1: = 81 children with Asperger Syndrome (AS) or high-functioning autism (HFA); Group 2: = 22 children diagnosed PDD-NOS with average IQ; and Group 3: = 372 randomly selected controls from primary and secondary schools. Both clinical groups scored significantly higher than controls (AS/HFA mean AQ = 31.9, SD = 6.93; PDD-NOS mean AQ = 28.0, SD = 6.88; controls mean AQ = 11.7, SD = 5.94). Among the controls, males scored significantly higher than females. The pattern of difference between clinical groups and controls was found to be similar in both countries.


Autism-Spectrum Quotient (AQ) Asperger Syndrome High-Functioning Autism PDD-NOS Autistic Traits Children 



AW was supported by a grant (The Grant-in-Aid for Scientific Research No.16530418) from the Japan Society for the Promotion of Science. SBC and SW were supported by grant from the MRC.


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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • Akio Wakabayashi
    • 1
    • 2
    Email author
  • Simon Baron-Cohen
    • 2
  • Tokio Uchiyama
    • 3
    • 4
  • Yuko Yoshida
    • 3
  • Yoshikuni Tojo
    • 5
  • Miho Kuroda
    • 3
  • Sally Wheelwright
    • 2
  1. 1.Department of PsychologyChiba UniversityInage, ChibaJapan
  2. 2.Autism Research Centre, Department of PsychiatryUniversity of CambridgeCambridgeUK
  3. 3.Yokohama Psycho-Developmental ClinicTsuzuki, YokohamaJapan
  4. 4.Department of Human Relations, Faculty of Human WelfareOtsuma Women’s UniversityTama, TokyoJapan
  5. 5.Section of Education for Children with AutismThe National Institute of Special EducationMusashino, TokyoJapan

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