The Autism Diagnostic Interview-Revised (ADI-R)

The Autism Diagnostic Interview-Revised (ADI-R) is a comprehensive, standardised, and structured interview used for assessing children or adolescents suspected of having an Autism Spectrum Disorder (ASD). The ADI-R along with the ADOS-2 is considered the ‘gold standard’ in the assessment and diagnosis of children with ASD. The instruments appear to have a complementary effect in aiding diagnosis and confirm the importance of a multidisciplinary assessment process with access to information from different sources and settings.

An experienced Psychologist conducts a comprehensive, structured interview with the parents or carers of the child, who are familiar with the child’s developmental history and the child’s current behaviour.

The ADI-R focuses on 3 functional domains:

  1. Language/Communication
  2. Reciprocal Social Interactions
  3. Restricted, Repetitive and Stereotyped Behaviours and Interests

The ADI-R has proven very effective in differentiating autism from other developmental disorders for children over the age of 2 years old. Extensive use of the ADI-R in the international research community has provided strong evidence of the reliability and validity of its categorical results.