The ADOS-2 is a semi-structured, standardized observation protocol used in diagnosing people with autism spectrum disorder (ASD).

The tool consists of a series of trials stimulating certain social behaviours in the repondent and enabling the test administrator to observe him/her in natural interactions. ADOS is a partly structured tool. It requires a standarized set of materials and the use of precise assessment criteria but the administration procedure itself is rather flexible. ADOS includes five modules (versions) designed for respondents differing in terms of age and level of linguistic expression. The test administrator assesses various aspects of behaviour which represent 5 categories: Language and Communication, Mutuality in Social Interactions, Playing/Imagination, Stereotypical Behaviour and Fixed Interests, Other Abnormal Behaviour. Apart from qualitative data some quantitative data can also be obtained in two scales: Social Affect and Limited and Repeated behaviour, as well as a total score. By comparing this score with an appropriate screening threshold it is possible to determine whether the respondent's behaviour represents the autism spectrum disorders. In the case of the youngest respondents (children under 31 months) it is possible to determine the extent to which the child's behaviour may give rise to concern.  For the respondents over the age of 30 months apart from the total score a comparative score can be calculated (based on the total score) which uses a 1 through 10 scale, shows the intensity of disorders and allows for individual comparisons.

Materials:

• Complete set (manual, diagnostic materials, protocols)
• Manual
• Protocol for Module 1 (10 cop.)
• Protocol for Module 2 (10 cop.)
• Protocol for Module 3 (10 cop.)
• Protocol for Module 4 (10 cop.)
• Protocol for Module T (10 cop.)
• Set of diagnostic materials

* The test has been published by Hogrefe Testcentrum s.r.o