back to home page: Autism Screening Tool Kit for Primary Care Providers

Screening Tools - Checklist for Autism in Toddlers (CHAT)

  • Uses parental information and provider observation
  • Cost: Free
  • Time: 2 minutes for parents, 5 minutes for providers
  • Languages: English
  • Age Range: 18-24 months
  • Sensitivity 0.65
  • Specificity 0.98
  • Website

The CHAT is a 9-item questionnaire that is completed by the child's parent/caregiver. There are an additional five questions for the provider to fill out based on observation of the child during the clinic visit. The CHAT can be filled out quickly and is easily interpreted by the physician. The sensitivity is low at 0.65 and the specificity is high at 0.98. The low sensitivity of the CHAT could lead your practice to miss many children who are at risk of an autism spectrum disorder