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ADI-R and ADOS
The Autism Diagnostic Interview - Revised (ADI-R) (Le Couteur et al., 1989; Lord, Rutter, & Le Couteur, 1994) is a standardised, semi-structured diagnostic interview for use with the parents or caregivers of people suspected of having a Pervasive Developmental Disorder.
The interview focuses upon three main areas:
- quality of reciprocal social interaction
- communication and language
- repetitive, restricted and stereotyped patterns of behaviour.
It produces an algorithm which is linked to ICD-10 and DSM-IV diagnostic criteria.
The Autism Diagnostic Observation Schedule (ADOS) (Lord, Rutter, DiLavore, & Risi, 1999) is a semi-structured, standardised assessment of communication, social interaction, and play. It provides a series of standardised contexts in which the child's social, communication and repetitive, stereotyped behaviours can be observed. It has been designed to assist in the diagnosis of autism and other pervasive developmental disorders and is suggested as a complementary instrument to the ADI-R (Lord et al., 1999). A diagnostic algorithm consistent with DSM-IV and ICD-10 clinical diagnoses is generated which provides cut-off scores for autism and other PDDs.
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