Autism Diagnostic Observation Schedule - Second EditionADOS-2
- Accurately assess and diagnose autism spectrum disorders across age, developmental level, and language skills
Choose from our products
Starter & complete kits, print & digital
2 optionsfrom $3,353.00
Test forms & reports
Booklets, record forms, answer sheets, report usages & subscriptions
5 optionsfrom $94.00
Manuals, stimulus books, replacement items & other materials
3 optionsfrom $181.00
Onsite, virtual & on-demand trainings
1 optionfrom $1,703.00
All tests & materials offered for ADOS-2
11 optionsfrom $94.00
ADOS-2 Software Kit605SWP Qualification Level B
Includes ADOS-2 Manual; 50 Protocol Booklets (10 per Module); Test Materials (100+ stimulus items); plus Unlimited-Use Computer Scoring CD (W-605U); all in a durable plastic container with handles and wheels. Requires PC with Windows 10, 8, 7, Vista or XP. CD-ROM drive and USB port required.
ADOS-2 Handscore Kit605WP Qualification Level B
Includes ADOS-2 Manual; 50 Protocol Booklets (10 per Module); Test Materials (100+ stimulus items), durable plastic case with handles and wheels
ADOS-2 Software Upgrade Package606SWP Qualification Level B
Includes ADOS-2 Manual; 50 Protocol Booklets (10 for each Module); Additional Toddler Module Stimulus Items, Unlimited-Use Scoring CD (requires PC with Windows 10, 8, 7, Vista or XP. CD-ROM drive and USB port required)
ADOS-2 Handscore Upgrade Package606WP Qualification Level B
Includes ADOS-2 Manual; 50 Protocol Booklets (10 for each Module); Additional Toddler Module Stimulus Items (15 items that, when added to your existing ADOS Kit, allow for Toddler Module administration)
ADOS-2 Manual605MWP Qualification Level B
ADOS-2 Toddler Module Booklets605AWP Qualification Level B
Pkg of 10
ADOS-2 Module 1 Booklets605BWP Qualification Level B
Pkg of 10
ADOS-2 Module 2 Booklets605CWP Qualification Level B
Pkg of 10
ADOS-2 Module 3 Booklets605DWP Qualification Level B
Pkg of 10
ADOS-2 Module 4 Booklets605EWP Qualification Level B
Pkg of 10
ADOS-2 DVD Training Package605DVDWP Qualification Level B
Includes Training Resources Program DVDs; Training Resources Guidebook; and CD with printable PDFs of all Training Resources Protocol Booklets
- Age range:
- 12 months through adulthood
- Toddler Module provides ranges of concern reflecting the extent to which a child demonstrates behaviors associated with ASD. Modules 1 through 4 provide cutoff scores for autism and autism spectrum classifications. Modules 1 through 3 also provide a Comparison Score indicating level of autism spectrum-related symptoms compared to children with ASD who are the same age and have similar language skills.
- Qualification level:
- Completion time:
- 40 - 60 minutes
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.
The ADOS-2 is a semi-structured, standardized assessment of communication, social interaction, play, and restricted and repetitive behaviours. By observing and coding these behaviours, you can obtain information that informs diagnosis, intervention, treatment planning, and educational placement.
The ADOS-2 includes five modules, each requiring 40 to 60 minutes to administer. The individual being evaluated is administered only one module selected on the basis of his or her expressive language level and chronological age.
Each module engages the examinee in a series of activities involving interactive stimulus materials (all included in the ADOS-2 Kit). To illustrate, activities in Module 3 are listed below:
Standardized Administration, Coding, and Scoring
Each ADOS-2 module has its own Protocol Booklet which structures the administration and guides you through coding and scoring. As activities are administered the examinee is observed, and behaviours are noted. Immediately following administration, the behaviours observed are to be coded. The administrator then uses the algorithm form for scoring.
In Modules 1 through 4, algorithm scores are compared with cutoff scores to yield one of three classifications: autism, autism spectrum, or non-spectrum. The difference between autism and autism spectrum classifications is one of severity, with the former indicating more pronounced symptoms. In the Toddler Module, algorithms yield “ranges of concern” rather than classification scores.
Administration and coding procedures for the ADOS-2 are functionally identical to those for the ADOS. Modules 1 through 4 retain the same basic activities and codes, though some codes have been expanded and several new codes have been added. Protocol Booklets for these modules have been significantly improved—they now provide clearer, more explicit administration and coding instructions.
Algorithms for Modules 1 through 3 have been revised to achieve more accurate and useful results and to provide a more uniform basis for comparing results across the three modules used with children and young adolescents.
A new Comparison Score for Modules 1 through 3 allows you to look at a child’s overall level of autism spectrum–related symptoms in relation to those of children diagnosed with ASD who are the same age and have similar language skills. This score also makes it easier to monitor an individual’s symptoms over time.
The New Toddler Module
The Toddler Module is designed specifically for children between 12 and 30 months of age who do not consistently use phrase speech. Observations are coded immediately following administration, and the codes are converted to algorithm scores. Toddler Module algorithms provide “ranges of concern” rather than cutoff scores. These ranges help form clinical impressions, but they avoid formal classification—which may not be appropriate at such a young age. The Toddler Module quantifies risk for ASD and provides guidance if continued monitoring is needed.