Poster Abstracts

Abstract

The Toddler Autism Symptom Inventory (TASI) is an interview for caregiver-reported symptoms of autism spectrum disorder (ASD) in toddler-age children. The TASI was developed and validated using 294 children at risk for ASD. In the current study, we evaluated the TASI psychometrics in a non-overlapping sample of 120 children (91 diagnosed with ASD, 25 diagnosed with another developmental disorder (DD), and 4 determined to not meet diagnostic criteria for any disorder). The TASI was shown to have excellent ability to discriminate children with ASD from those with DD (AUC = .822). Using the recommended cutoff score of 7, sensitivity was 89%, and specificity was 60%. When examining DSM-5 symptoms and item-level endorsement among the ASD and DD groups, all symptoms except for insistence on sameness (B2) were endorsed at significantly higher rates in the ASD vs. DD group. Items endorsed at significantly higher rates in the ASD group compared to the DD group included: poor response to name, not approaching others to play or interact, not showing objects of interest, engaging in repetitive vocalizations or unusual sounds, and sensory-seeking behaviors. Results suggest that the TASI provides important information regarding a young child’s autism symptoms and aids in the diagnostic process.

First AuthorKirsty Lauren Coulter
Second AuthorMarianne Barton
Third AuthorDiana Robins
Fourth AuthorDeborah Fein