ADOS-2 Module 4: Psychometric Properties and Diagnostic Performance at an Autism-specialized Clinic.

Purpose: Psychometric properties and diagnostic performance of the ADOS-2 module 4 were evaluated with participants from an autism-specialized clinic. Methods: The sample had 331 participants with 226 males and 70 females receiving an ASD diagnosis. The evaluation consisted of the following: (1) A r...

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Publicado en:Journal of Autism & Developmental Disorders Vol. 55; no. 11; pp. 3900 - 3914
Autores principales: Christiansen, Jens, Pedersen, Lennart
Formato: research tables/charts Journal Article
Publicado: Springer Nature Nov2025
Acceso en línea:Ver este registro en EBSCOhost
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      dt: Nov2025
      vid: 55
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      pub: Springer Nature
      place: New York, New York
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        10.1007/s10803-024-06480-6
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        atl: ADOS-2 Module 4: Psychometric Properties and Diagnostic Performance at an Autism-specialized Clinic.
      aug:
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          Christiansen, Jens
          Pedersen, Lennart
        affil: https://ror.org/00pdsc246 Center for Autism, Copenhagen, Denmark
      sug:
        subj:
          Autism Spectrum Disorder Diagnosis
          Outpatient Service
          Specialization
          Algorithms
          Psychometrics
          Predictive Validity
          Human
          Scales
          Male
          Female
          Adult
          Interview Guides
          ROC Curve
          Sensitivity and Specificity
          Sex Factors
          Correlational Studies
          Factor Analysis
          Intelligence
          Pearson's Correlation Coefficient
          Data Analysis Software
          Funding Source
          Adult: 19-44 years
          Male
          Female
      ab: Purpose: Psychometric properties and diagnostic performance of the ADOS-2 module 4 were evaluated with participants from an autism-specialized clinic. Methods: The sample had 331 participants with 226 males and 70 females receiving an ASD diagnosis. The evaluation consisted of the following: (1) A replication of the Exploratory Factor Analysis (EFA) reported by Hus, V., & Lord, C. (2014). The Autism Diagnostic Observation Schedule, Module 4: Revised Algorithm and Standardized Severity Scores. Journal of Autism and Developmental Disorders, 44(8), 1996–2012. https://doi.org/10.1007/s10803014-2080-3.). (2) Identification of ADOS-2 items best predicting clinical diagnosis using Recursive Feature Elimination (RFE) and comparison of these items to previous findings. (3) Receiver Operating Characteristic (ROC) curve analyses of the effects of age and IQ on diagnostic performance. (4) Comparisons of ADOS-2 revised algorithm scores between females and males and their association with ADI-R scores. Results: The EFA item-to-factor allocation of the ADOS-2 revised algorithm was largely reproduced. When comparing the present RFE to previous RFE findings, the item Quality of Social Responses stood out. ROC curve analysis showed outstanding diagnostic performance for adults with IQ above 70 but for females, ADOS-2 revised algorithm scores were lowered, and, contrary to males, did not correlate with ADI-R scores. Conclusion: Reproducing the item-to-factor allocation and finding outstanding agreement with the diagnostic decision for adults with IQ > 70 showcase the strength of the ADOS-2 revised algorithm. Furthermore, by incorporating, into future revisions, the finding of inter-clinic importance of the item Quality of Social Responses, performance might be further enhanced. Lastly, though, that female scores were lowered and did not correlate with ADI-R indicate a weakness in the ADOS-2 when applied to the adult female population.
      pubtype: Academic Journal
      doctype:
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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