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Autism Diagnostic Observation Schedule (ADOS-2) for the Clinical Setting

ADOS-2 is a semi-structured, standardised assessment of communication, social interaction, play/imaginative use of materials and restricted and repetitive behaviours for individuals who have been referred because of possible autism spectrum disorder (ASD). Fundamentally new to the ADOS-2 than ADOS-G are the procedures involved in the algorithm computation and the comparison score for module 1 through 3 which were revised on the basis of the findings of recent validation research. The new comparison score provides a way of indicating a participant’s level of autism spectrum related symptomatology and it can also be used to interpret an individual’s own change in autism spectrum related symptoms over time. ADOS-2 also includes a toddler module, which is designed for very young children who do not use phrase speech but who are between the ages of twelve and thirty months. The toddler module has its own algorithms that provide ‘ranges of concern’ instead of cut-off scores. A variety of specialists will use the ADOS-2, their use of results in writing reports and making recommendations to inform medical diagnoses, special education classification and occupational therapists and speech and hearing professionals might use for treatment planning


Professor Louise Gallagher

How to apply

For those interested in attending the training, please contact Nadia Bolshakova by email:


EUR 400 for two full days training

Date, time and place

Trinity Centre for Health Sciences, St James's Hospital, Dublin 8. The course is running every three or four months.

Further information

Course website: (

Contact: The Extramural Course Co-ordinator, Nadia Bolshakova, phone: 01 896 2144, email: