Investigating the ADOS-2 calibrated severity score: insights from the ELENA cohort.

ABSTRACT:

Introduction

The Autism Diagnostic Observation Schedule (ADOS-2) is widely used to assess Autism Spectrum Disorder (ASD) symptom severity. To allow comparisons across modules and developmental levels, the Calibrated Severity Score (ADOS-CSS) was developed. However, concerns have been raised about potential changes in the measurement signal introduced by the calibration process, which may alter the signal captured by the ADOS-2 raw scores (ADOS-RS).

Methods

Using longitudinal data from the ELENA cohort (N = 145 children with ASD assessed at baseline and after 3 years), we examined the psychometric properties of the ADOS-CSS and ADOS-RS. The Social Responsiveness Scale (SRS-2) was used as an external reference. Bootstrap resampling was used to estimate means and 95% con

SUBMITTER: Peyre H 

PROVIDER: S-EPMC12833228 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature