What is the normal score for the Childhood Autism Rating Scale (CARS)?

Nov 21, 2025 Source: Cainiu Health
Dr. Zhang Baohua
Introduction
A total score of ≤14 on the Childhood Autism Rating Scale (CARS) falls within the normal range. A score above 14 suggests the possible presence of autism-related behavioral characteristics, with higher scores indicating a greater likelihood. However, this scale is only a screening tool and cannot serve as a basis for diagnosis. If the scale results are abnormal or if signs such as impaired social communication or repetitive behaviors are observed, it is recommended to seek medical evaluation promptly.

  A total score of ≤14 on the Childhood Autism Rating Scale (CARS) falls within the normal range. A score above 14 suggests the possible presence of autism-related behavioral characteristics, with higher scores indicating a stronger likelihood. However, this scale is a screening tool only and cannot serve as a basis for diagnosis. If the scale indicates an abnormal result or if signs such as impaired social communication or repetitive behaviors are observed, prompt medical evaluation is recommended.

  The scale consists of 14 assessment items, each scored based on the frequency of behavior: 0 points for absence of the behavior, 1 point for occasional occurrence, and 2 points for frequent occurrence. The total score ranges from 0 to 28, focusing on core dimensions of autism symptoms, including social interaction, verbal communication, and repetitive or stereotyped behaviors.

  It should be noted that results may be influenced by the evaluator's subjective judgment and assessment context, so the scale has certain limitations. A normal score only indicates that the risk threshold for screening has not been reached; it does not completely rule out autistic tendencies. Conversely, an abnormal score does not equate to a diagnosis, and further clinical observation and professional assessment tools are required for definitive diagnosis.

  In daily life, pay close attention to children's social interaction and language development, create rich social environments, encourage communication and expression, and avoid prolonged isolation. When unusual behaviors are noticed, promptly document specific manifestations to provide detailed information for professional assessment and facilitate early intervention.