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The broad autism phenotype questionnaire.

Robert S E Hurley1, Molly Losh, Morgan Parlier

  • 1Department of Psychiatry, Neurodevelopmental Disorders Research Center, University of North Carolina, Chapel Hill, NC 27599-3366, USA.

Journal of Autism and Developmental Disorders
|December 6, 2006
PubMed
Summary
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The Broad Autism Phenotype Questionnaire (BAPQ) effectively identifies the broad autism phenotype (BAP) in parents of autistic children. This validated tool shows high sensitivity and specificity for BAP traits.

Area of Science:

  • Psychiatry
  • Genetics
  • Developmental Psychology

Background:

  • The broad autism phenotype (BAP) describes milder autism-related traits in relatives of individuals with autism.
  • Understanding BAP is crucial for genetic and diagnostic research in autism spectrum disorder (ASD).

Purpose of the Study:

  • To introduce and validate the Broad Autism Phenotype Questionnaire (BAPQ) for adult assessment.
  • To assess the BAPQ's ability to differentiate parents of autistic children from controls.

Main Methods:

  • The BAPQ was administered to 86 parents of autistic children and 64 community controls.
  • Statistical analysis was used to determine the sensitivity and specificity of the BAPQ.
  • Subscale scores (aloof personality, rigid personality, pragmatic language) were compared between groups.

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Main Results:

  • The BAPQ demonstrated high sensitivity and specificity (>70%) for detecting the BAP.
  • Parents of autistic children scored significantly higher on all BAPQ subscales compared to controls.
  • The BAPQ effectively identified BAP characteristics in the study population.

Conclusions:

  • The Broad Autism Phenotype Questionnaire (BAPQ) is a valid and efficient instrument for measuring BAP in adults.
  • The BAPQ can aid in characterizing the genetic liability to autism in non-autistic family members.
  • This tool supports further research into the genetic and phenotypic aspects of autism spectrum disorder.