Diagnostic validity of Autism Diagnostic Observation Schedule, second edition (K-ADOS-2) in the Korean population.
So Yoon Kim, Miae Oh, Guiyoung Bong and 4 others
PMID 35773721WHAT IT FOUND
The Korean ADOS-2 correctly identified autism across toddler to adult modules and usually avoided false autism labels among non-autistic people.
Use it alongside caregiver and clinical information.
Key findings
01The Korean ADOS-2 identified autism in 85.4–100.0% of participants and correctly classified 80.4–96.8% of non-autistic participants across all modules and developmental cells.
02Korean ADOS-2 total scores were significantly and positively correlated with ADI-R, SCQ, SRS-2, and K-CARS scores across all modules and developmental cells.
03When compared with other developmental disabilities, the tool was less reliable for confirming non-autism in young or nonverbal children, so the authors advise extra assessment even if the K-ADOS-2 says non-ASD.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
The final clinical diagnosis was not independent of the K-ADOS-2 scores, so the test was compared with a reference standard that partly used the same information. The data were pooled from multiple projects with different purposes and recruitment sources. Some modules had unbalanced numbers of autistic and non-autistic participants and unbalanced male and female participants, especially Module 4. The other-developmental-disabilities group was small, and many participants in that group did not have confirmed developmental disability diagnoses. Nonverbal mental age was not available for all participants, and some young or nonverbal children could not be assessed properly. The study used two K-CARS cutoff scores because Korean cutoffs were inconsistent, which may affect agreement results.
Declared interests
The supplied text names the National Research Foundation of Korea as funder. It does not report commercial conflicts, industry sponsorship, or that a sponsor designed or wrote the study.
The easy way to misread this
Do not treat the K-ADOS-2 as a stand-alone autism diagnosis or as proof that a child does not have autism. The paper found weaker discrimination for some repetitive-behavior items and lower ability to confirm non-autism in young nonverbal children, so additional assessment is needed.