Journal of Autism and Developmental Disorders

, Volume 37, Issue 9, pp 1679–1690 | Cite as

The Broad Autism Phenotype Questionnaire

  • Robert S. E. Hurley
  • Molly Losh
  • Morgan Parlier
  • J. Steven Reznick
  • Joseph Piven
Original Paper


The broad autism phenotype (BAP) is a set of personality and language characteristics that reflect the phenotypic expression of the genetic liability to autism, in non-autistic relatives of autistic individuals. These characteristics are milder but qualitatively similar to the defining features of autism. A new instrument designed to measure the BAP in adults, the Broad Autism Phenotype Questionnaire (BAPQ), was administered to 86 parents of autistic individuals and 64 community control parents. Sensitivity and specificity of the BAPQ for detecting the BAP were high (>70%). Parents of children with autism had significantly higher scores on all three subscales: aloof personality, rigid personality, and pragmatic language. This instrument provides a valid and efficient measure for characterizing the BAP.


Autism Broad autism phenotype Assessment 



This research was supported by NIH grants U54 MH66418-02 (JP) and NICHD P30 HD03110. The authors gratefully acknowledge the contributions of Patrick Thompson, Karen Stone, Ellen Cohen, Elizabeth Ashley, and Debra Childress.


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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • Robert S. E. Hurley
    • 1
  • Molly Losh
    • 1
  • Morgan Parlier
    • 1
  • J. Steven Reznick
    • 2
  • Joseph Piven
    • 1
  1. 1.Department of Psychiatry, Neurodevelopmental Disorders Research Center, 4123 Bioinformatics BldgUniversity of North CarolinaChapel HillUSA
  2. 2.Department of PsychologyUniversity of North CarolinaChapel HillUSA

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