ORIGINAL PAPER Evaluation of the ADOS Revised Algorithm: The Applicability in 558 Dutch Children and Adolescents

The Author(s) 2009. This article is published with open access at Springerlink.com Abstract The revised ADOS algorithms, proposed by Gotham et al. (J Autism Dev Disord 37:613–627, 2007), were investigated in an independent sample of 558 Dutch children (modules 1, 2 and 3). The revised algorithms lead to better balanced sensitivity and specificity for modules 2 and 3, without losing efficiency of the classification. Including the restricted repetitive behaviour domain in the algorithm contributes to a clinical ASD classification in modules 2 and 3. For module 1, the results indicate less improvement, probably due to the low-functioning popu-lation. In most groups, the advantages of the revised algorithms are achieved without losing the strength of the original algorithm