The autism diagnostic observation schedule - Toddler module: A new module of a standardized diagnostic measure for autism spectrum disorders

Rhiannon Luyster, Katherine Gotham, Whitney Guthrie, Mia Coffing, Rachel Petrak, Karen Pierce, Somer Bishop, Amy Esler, Vanessa Hus, Rosalind Oti, Jennifer Richler, Susan Risi, Catherine Lord

Research output: Contribution to journalArticlepeer-review

270 Scopus citations

Abstract

The Autism Diagnostic Observation Schedule (ADOS; Lord et al., J Autism Dev Disord, 30(3):205-223, 2000) is widely accepted as a "gold standard" diagnostic instrument, but it is of restricted utility with very young children. The purpose of the current project was to modify the ADOS for use in children under 30 months of age. A modified ADOS, the ADOS Toddler Module (or Module T), was used in 360 evaluations. Participants included 182 children with best estimate diagnoses of ASD, non-spectrum developmental delay or typical development. A final set of protocol and algorithm items was selected based on their ability to discriminate the diagnostic groups. The traditional algorithm "cutoffs" approach yielded high sensitivity and specificity, and a new range of concern approach was proposed.

Original languageEnglish (US)
Pages (from-to)1305-1320
Number of pages16
JournalJournal of Autism and Developmental Disorders
Volume39
Issue number9
DOIs
StatePublished - Sep 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Developmental and Educational Psychology

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