Diagnostic Autism Spectrum Interview [DASI]

The Diagnostic Autism Spectrum Interview [DASI]  is a semi-structured clinical interview developed by Professor Susan Young to support healthcare practitioners in the assessment and diagnosis of autism spectrum disorder. DASI guides the assessor to complete a comprehensive and relevant background interview, assess symptoms of autism and possible co-existing conditions.

DASI includes an optional section, the Observational Record, that aims to supplement the clinical interview with objective information.  This provides a structure to assess, observe and record the client's performance when presented with specific tasks to objectively assess communication, understanding emotions, understanding of the environment and social situations, imagination and creativity, and their behavioural presentation in more general terms.

DASI is free to download and distribute. Scroll down for (optional) pre-assessment rating scales to obtain informant and self-reported information in advance of the DASI clinical interview. 

On-line training is currently being developed.  Please contact us if you are interested in translating DASI into other languages.  

DASI English DASI Français DASI Norsk DASI Türkçe

DASI Português (Brasil)    

DASI Autism Self and Informant Rating Scales

The DASI rating scales are pre-assessment tools that can be completed in advance of the Diagnostic Spectrum Autism Interview. Available in two formats for either self-report (DASI-SR) or informant-report (DASI-IR), the rater is asked to rate each of the symptoms associated with autism selecting from four options (never, rarely, sometimes, often).  Multiple perspectives may be obtained from the informant version being completed by family members, carers and teachers.

The scales differ from other rating scales because the rater is asked to provide specific examples of how each endorsed symptom impacts on the person's behaviour, activities and relationships when they were (a) a child (spanning from toddlerhood to school-age), and (b) at the present time.  With the addition of this qualitative information, the scales are useful tools to gain pre-assessment and follow-up information on the person's functioning across settings.

Free to download in English.  Please contact us if you are interested in translating the scales.

DASI-SR English DASI-IR English DASI-SR Norsk DASI-IR Norsk