ABSTRACT
This study evaluates an online ADOS-2 Module 4 administration. Adolescents and adults with (n = 24; 7 females) and without (n = 13; 5 females) a history of autism spectrum disorder (ASD) completed the ADOS-2 Module 4 via videoconference. Parents or caregivers completed the Parent/Caregiver Form of the Vineland Adaptive Behavior Scales and the Achenbach Adult Behavior Checklist. The ADOS-2 was reviewed and scored by five trained clinicians and supervised by a senior clinician with established research reliability. The autistic group's scores differed on ADOS total (Calibrated Severity Score, WPS instrument) and domain scores, KSADS domain scores, and Achenbach T-scores. Inter-rater reliability was "moderate" (κ = 0.732), and percentage item-wise agreement was r = 0.69. The online ADOS-2 showed significant convergence with parent-reported assessments of ASD-relevant symptoms and characteristics, suggesting it was a valid assessment. While any online assessments must be used with caution, results suggest that the approach described here could have sufficient validity and reliability to fill the urgent need to assess and evaluate ASD symptomatology, as one component of a thorough clinical evaluation of ASD-related behaviors. LAY SUMMARY: In this exploratory study, we asked whether it was possible to give the ADOS-2 to adolescents and adults in a completely online way. Results showed that expert clinicians agreed on 69% of ADOS-2 items; also, participants with autism had higher scores on all parts of the ADOS-2. The online ADOS-2 scores had strong and significant relationships with parents' reports of friendship and social skills. While we need more research that tests this method, this way of doing the ADOS-2 online may be useful for clinicians and researchers who have an urgent need to evaluate autism during the pandemic.