Childhood Autism Rating Scale, Second Edition (CARS2)

Childhood Autism Rating Scale, Second Edition (CARS2)

Key Information


Eric Schopler, PhD, Mary E. Van Bourgondien, PhD, Glenna Janette Wellman, PhD, Steven R. Love, PhD


A brief rating scale that helps identify autism in children

Age Range:




Childhood Autism Rating Scale, Second Edition (CARS2)


Revised to cover the entire autism spectrum, including Asperger’s Syndrome.

Like the original CARS, the new CARS2 offers an easy-to-use tool that helps you identify children with autism and distinguish them from developmentally disabled children who are not autistic—providing quantifiable ratings based on direct behavior observation. CARS2 includes enhancements that make the test more responsive to individuals on the high-functioning end of the autism spectrum—those with average or higher IQ scores, better verbal skills, and more subtle social and behavioral deficits. New features help you integrate diagnostic information, determine functional capabilities, provide feedback to parents, and design targeted interventions.

  • Standard Version Rating Booklet – For use with individuals younger than age 6 and those with communication difficulties or below average estimated IQs
  • High Functioning Individuals Rating Booklet – Use to assess verbally fluent individuals ages 6 and older, with IQ scores above 80
  • Questionnaire for Parents or Caregivers – An unscored scale that gathers information for use in making Standard and High Functioning ratings

Scoring Options

Manual Scoring – Allows you to administer and score assessments by hand.