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

The Autism Diagnostic Observation Schedule-Second Edition (ADOS-2) is a standardized activity-based instrument for diagnosing autism spectrum disorders in children and adults. Trained clinician examiners utilize the standardized ADOS activities and questions depending on the observed individual’s age and communication level.  

Content

Sub-Category
Domains
Autism spectrum disorders
Grades
< 3 Years,
Pre-Kindergarten,
Kindergarten,
1st Grade,
2nd Grade,
3rd Grade,
4th Grade,
5th Grade,
6th Grade,
7th Grade,
8th Grade,
9th Grade,
10th Grade,
11th Grade,
12th Grade,
Post secondary
Languages
English,
Other
Other Language/s
Czech, Danish, Dutch, Finnish, French, German, Italian, Norwegian, & Swedish
Respondent
Observer

Administration Information

Length
40-60 minutes

Access and Use

Price

Prices vary for different kits, see details on the publisher’s website

Contact

Western Psychological Services 1-800-648-8857

Open Access
No
Use in Research

Pierce, K., Gazestani, V. H., Bacon, E., Barnes, C. C., Cha, D., Nalabolu, S., ... & Courchesne, E. (2019). Evaluation of the diagnostic stability of the early autism spectrum disorder phenotype in the general population starting at 12 months. JAMA pediatrics, 173(6), 578-587. https://doi.org/10.1001/jamapediatrics.2019.0624 

Yap, C. X., Henders, A. K., Alvares, G. A., Wood, D. L., Krause, L., Tyson, G. W., ... & Gratten, J. (2021). Autism-related dietary preferences mediate autism-gut microbiome associations. Cell, 184(24), 5916-5931. https://doi.org/10.1016/j.cell.2021.10.015

Psychometrics

Scoring
Computer scoring,
Manual scoring
Psychometric References

Lord, C., Risi, S., Lambrecht, L., Cook, E.H., Jr., Leventhal, B.L., DiLavore, P.C., Pickles, A., & Rutter, M. (2000). Autism Diagnostic Observation Schedule – Generic: A standard measure of social and communication deficits associated with the spectrum of autism. Journal of Autism & Developmental Disorders, 30(3), 205-223. https://doi.org/10.1023/A:1005592401947

Lord, C., Rutter, M., DiLavore, P.C., Risi, S., Gotham, K., & Biship, S.L. (2012). Autism Diagnostic Observation Schedule, Second Edition; Part I: Modules 1-4. Los Angeles, CA: Western Psychological Services.

Lord, C., Luyster, R.J., Gotham, K., & Guthrie, W. (2012). Autism Diagnostic Observation Schedule, Second Edition; Part II: Toddler Module. Los Angeles, CA: Western Psychological Services.

Psychometric Considerations

Psychometrics is the science of psychological assessment. A primary goal of EdInstruments is to provide information on crucial psychometric topics including Validity and Reliability – essential concepts of evaluation, which indicate how well an instrument measures a construct - as well as additional properties that are worthy of consideration when selecting an instrument of measurement.

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