Assessing the psychometric properties of the Autism Diagnostic Observation Schedule - Generic (ADOS-G) in a clinical setting in the Chinese mainland.
Wuxia Enid Bai, Elinda Ai Lim Lee, Bahareh Afsharnejad and 7 others
PMID 41566357WHAT IT FOUND
ADOS-G autism spectrum thresholds in a Chinese mainland clinic identified many autistic children but also many children without an autism diagnosis.
Communication scores were less reliable than social interaction scores, and agreement with ADI-R was slight.
Key findings
01The autism spectrum cut-offs showed high sensitivity, above 90%, but low specificity for most modules and domains.
02Communication scores had low internal consistency, with Cronbach's alpha 0.40 to 0.60, while Social Interaction scores were around acceptable reliability at approximately 0.70.
03ADOS-G suggested diagnosis showed only slight agreement with ADI-R and fair agreement with clinician diagnosis for Modules 1, 3 and overall.
STILL TO COME
How it was doneWhat they foundWhat it means for SLPs
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What it does not show
The study used retrospective clinical records, so test-retest reliability and interrater agreement could not be assessed. Only the ADOS-G was examined, not the newer ADOS-2 that is now more commonly used in the Chinese mainland. Module 3 had a smaller sample than Modules 1 and 2, and Module 4 was not evaluated. All participants were referred to a specialist developmental-behavioural centre, so the sample is not a general community sample. The clinician diagnosis analyses were based on 2803 individuals who returned, not all 3546 who completed ADOS-G modules 1 to 3. Not all clinicians administering ADOS-G had fulfilled formal research reliability protocols. Low specificity may reflect the clinical setting, where most participants were positive autism cases.
Declared interests
Funders named are the National Programs for Brain Science and Brain-like Intelligence Technology under the Science and Technology Innovation 2030-Major Projects, the National Natural Science Foundation of China, the Science and Technology Programme of Guangdong Province, the 'Five Fifths' Project of The Third Affiliated Hospital of Sun Yat-sen University, and the Science and Technology Programme of Guangzhou.
The easy way to misread this
Do not read a positive ADOS-G autism spectrum result as proof of autism. The autism spectrum thresholds had low specificity, and agreement with clinician diagnosis was only slight to fair, so clinical judgment and other assessments must still determine the diagnosis.
Summarised by AI from the full paper, without a clinician reviewing it. Check it against the source before it changes what you do. Read it on PubMed →