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Autism Diagnostic Observation Schedule - Second Edition (ADOS-2)

This revision improves an instrument already viewed as "the gold standard" for observational assessment of autism spectrum disorder (ASD). With updated protocols, revised algorithms, a new Comparison Score, and a Toddler Module, the ADOS-2 provides a highly accurate picture of current symptoms, unaffected by language. It can be used to evaluate almost anyone suspected of having ASD--from 1-year-olds with no speech to adults who are verbally fluent.

Like its predecessor, the ADOS-2 is a semi-structured, standardized assessment of communication, social interaction, play, and restricted and repetitive behaviors. It presents various activities that elicit behaviors directly related to a diagnosis of ASD. By observing and coding these behaviors, you can obtain information that informs diagnosis, treatment planning, and educational placement.

5 Modules

The ADOS-2 includes five modules, each requiring just 40 to 60 minutes to administer. The individual being evaluated is given only one module, selected on the basis of his or her expressive language level and chronological age. Following guidance provided in the manual, you choose the module that's appropriate for the individual you're evaluating.

  • Toddler Module--for children between 12 and 30 months of age who do not consistently use phrase speech
  • Module 1 - or children 31 months and older who do not consistently use phrase speech
  • Module 2 - for children of any age who use phrase speech but are not verbally fluent
  • Module 3 - for verbally fluent children and young adolescents
  • Module 4 - for verbally fluent older adolescents and adults

The ADOS-2 Hand-Scored Kit includes the ADOS-2 Manual; 50 Protocol Booklets (10 per Module);  and Test Materials all in a durable plastic container with handles and wheels.

The ADOS-2 Software Kit includes all of the componenets listed above plus the unlimited use computer scoring CD.

The ADOS-2 DVD Training Package includes the Training Program DVDs, the Training Guidebook, and a CD with printable PDFs of all Training Protocol Booklets


NB: Users with specific training in the ADOS-2 may purchase this product without being registered at Level C (Psychology). You must confirm your qualifications with us before purchasing so that we can update your account.

Due to the high cost of importing the full kits, we order these on demand. Any sales of the kits are strictly non-refundable after an order is placed.

Test Abbreviation: 
Registration Level: 
12 months - adulthood
Country of origin: 
Western Psychological Services
40-60 minutes
Work Area: 

Products available for this test

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All prices include GST

Product code Product title Price
80152M ADOS-2 Manual $395.00
80152TP ADOS-2 DVD Training Package $3,400.00
80152M4 ADOS-2 Module 4 (pk10) $290.00
80152M3 ADOS-2 Module 3 (pk10) $290.00
80152M2 ADOS-2 Module 2 (pk10) $290.00
80152M1 ADOS-2 Module 1 (pk10) $290.00
80152MT ADOS-2 Toddler Module (pk10) $290.00
80152SKT ADOS-2 Software Kit (not returnable) $7,500.00
80152HKT ADOS-2 Hand-Scored Kit (not returnable) $7,000.00