Journal of Autism and Developmental Disorders

, Volume 19, Issue 3, pp 363–387 | Cite as

Autism diagnostic interview: A standardized investigator-based instrument

  • Ann Le Couteur
  • Michael Rutter
  • Catherine Lord
  • Patricia Rios
  • Sarah Robertson
  • Mary Holdgrafer
  • John McLennan


The development of a new standardized investigator-based interview for use in the differential diagnosis of pervasive developmental disorders is described, together with a diagnostic algorithm (using ICD-10 criteria) based on its use. Good interrater reliability for algorithm items was shown between four raters, two in Canada and two in the UK, who rated 32 videotaped interviews. The items also significantly discriminated between 16 autistic and 16 nonautistic mentally handicapped subjects. The algorithm based on ICD-10 identified all 16 autistic individuals and none of the 16 nonautistic subjects.


Differential Diagnosis School Psychology Developmental Disorder Diagnostic Interview Interrater Reliability 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Plenum Publishing Corporation 1989

Authors and Affiliations

  • Ann Le Couteur
    • 1
  • Michael Rutter
    • 1
  • Catherine Lord
    • 2
  • Patricia Rios
    • 1
  • Sarah Robertson
    • 1
  • Mary Holdgrafer
    • 2
  • John McLennan
    • 2
  1. 1.MRC Child Psychiatry UnitInstitute of PsychiatryLondonEngland
  2. 2.Department of PediatricsUniversity of Alberta and Glenrose Rehabilitation HospitalEdmonton

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