Childhood Autism Rating Scale

Social/Emotional Test

Authors: Eric Schopler, Ph.D., Mary E. Van Bourgondien, Ph.D., G. Janette Wellman, Ph.D. and Steven R. Love, Ph.D.

Publisher & Copywright:

Western Psychological Services / 2010

First Addition was originally formatted & published in 1988

Age Level of Examinees:

2 years & older

Skills & Concepts Measured

Requirements for Testing

Time Required: The observational portion of the testing happens over an extended period of time during which all 15 of the behavior standards need to be seen and assessed. The scoring portion only takes 5-10 minutes once all data is collected.

Qualifications of Examiner: Anyone who has had exposure to and training in autism with brief training on how to make valid ratings for the 15 behaviors measured can administer the test. Examples of this are:

  • Physicians
  • Special Educators
  • School Psychologists
  • Speech Pathologists
  • Audiologists

Test Materials: Manual, CARS2 - Standard Test Rating Booklet, CARS2 - High Functioning Rating Booklet, CARS2 Parental Questionnaire

Scoring & Results

Methods of Scoring: Hand Written Scores & Calculations are acquired

Basal/Ceiling Guidelines: No Basal or Ceiling rules apply to the Childhood Autism Rating Scale since the "test" is based on information acquired through direct observation.

Types of Scores Obtained:

  • Raw Score - Calculated through the Categorical Ratings of all 15 Behaviors
  • Standard Score or T-Score - Obtained through a table that pairs the Raw Score provided with the T-Score


  • It was easier for me to get my point across
  • It allowed me to be creative and add my own personal touch to an assignment
  • Did not frustrate me the way writing a paper would
  • It was easier for me to keep myself organized
  • Was quicker and more efficient method of displaying information than writing a paper is
  • It is more engaging, and therefore a more effective way to communicate information
  • It was fun!