Journal of Autism and Developmental Disorders

, Volume 48, Issue 5, pp 1847–1853 | Cite as

Brief Report: Factor Analysis of the Brazilian Version of the Adult Autism Spectrum Quotient

  • Julia Horta Tabosa do Egito
  • Gabrielle Martins Ribeiro Ferreira
  • Manoela Izidoro Gonçalves
  • Ana Alexandra Caldas Osório
Brief Report


This study examined the factor structure of the Brazilian version of the Autism-Spectrum Quotient. This is a self-report questionnaire for continuous and quantitative assessment of autistic spectrum traits in adults. Confirmatory factor analysis was performed on the five-factor model (social skill, attention switching, attention to detail, communication and imagination) proposed by the original authors, support not being found for this model in our sample. An exploratory factor analysis was then performed that resulted in an alternative three-factor model (social skills, details/patterns and imagination). Confirmatory factor analysis of the latter model revealed adequate psychometric indexes. The Brazilian version of the AQ was shown to be an adequate instrument for the evaluation of signs compatible with the autism spectrum in adults.


Autism Autism Spectrum Quotient Factor analysis Validation 



Julia Horta Egito is supported by a PhD grant (Fundação de Amparo à Pesquisa do Estado de São Paulo, FAPESP -2016/17242-5). Ana Alexandra Caldas Osório is supported by research Grant No. 161001 (Fundo Mackenzie de Pesquisa—MackPesquisa). The authors wish to thank Beatriz Marques Sanchez for her assistance in the translation process, Gabriel Gaudêncio do Rêgo for his assistance with graphic edition and Ana Karla Silva Soares with her assistance in data analysis.

Authors Contributions

JHE participated in study design, data collection, statistical analyses and manuscript preparation; GMRF and MIG participated in study design, data collection and data analyses; AACO conceived and designed the study, coordinated the statistical data analyses, and participated in manuscript preparation and review. All authors read and approved the final manuscript.

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical Approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2017

Authors and Affiliations

  • Julia Horta Tabosa do Egito
    • 1
    • 2
  • Gabrielle Martins Ribeiro Ferreira
    • 1
  • Manoela Izidoro Gonçalves
    • 1
  • Ana Alexandra Caldas Osório
    • 1
    • 2
    • 3
  1. 1.Social and Cognitive Neuroscience LaboratoryMackenzie Presbyterian UniversitySão PauloBrazil
  2. 2.Developmental Disorders Graduate ProgramMackenzie Presbyterian UniversitySão PauloBrazil
  3. 3.Social and Cognitive Neuroscience Laboratory and Developmental Disorders Program, Center for Health and Biological ScienceMackenzie Presbyterian UniversitySão PauloBrazil

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