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Childhood Autism Rating Scale (CARS)

Childhood Autism Rating Scale (CARS) Test

In about 3 minutes, this 15-item scale helps gauge how closely a 2 to 4 year old’s behavior aligns with autistic traits. It’s a quick, structured screen that helps guide next steps for further evaluation.

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Questions: 153 minutes

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08:30

October 2, 2025

October 2, 2025
Material has been updated

October 2, 2025
Material has been published

23007 views

1558 completions

1158 likes

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How the Scales are Structured

example score

19/60

Childhood Autism Rating Scale (CARS) Total Score (CARS(TS)

Measures the severity of observed autism-related behaviors in young children based on clinical observation and caregiver report.

No autism indicated

Mild–moderate traits

Severe traits

15 – 29: No autism indicated | 30 – 36: Mild–moderate traits | 37 – 60: Severe traits

A score of 19 falls in the “No autism indicated” range, suggesting low levels of behaviors associated with autistic traits on this screening scale.

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DATA-BASED USER COHORTS

Who Usually Takes This Test?

Concerned parents of toddlers

46%OF USERS

Parents of 2–4-year-olds who notice speech, social, or sensory differences and want a quick structured check before seeking a full evaluation.

Early childhood clinicians

34%OF USERS

Pediatricians, child psychologists, and developmental specialists who need a fast screening rating based on observation or a parent interview.

Preschool educators and counselors

20%OF USERS

Kindergarten teachers and school counselors who see atypical interaction or play patterns and want to document concerns for referral.

BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.

RESULTS YOU CAN ACTUALLY USE

What You’ll See After You Finish the Test

Scale Results
— Explained Clearly

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AI-Powered
Interpretation

A structured, clinically grounded explanation. Our AI analyzes patterns and relationships between scales to provide a coherent interpretation — without alarmist language.

Statistical
Comparison

See how you compare to others. Your scores are placed in a statistical context, showing percentiles and trends based on anonymized platform data to help you understand what`s typical.

Practical
Recommendations

Actionable guidance tailored to your profile. Receive clear, realistic suggestions you can apply immediately — focused on coping, self-regulation, and realistic next steps.

AI-Detected
Insights

Key patterns you might not notice on your own. Surfacing subtle connections in your responses that help you better understand what may be driving your current results.

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Clarify, reflect, and explore right away. Talk through your outcomes, ask questions, and explore meanings in a calm, non-diagnostic dialogue environment.

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Used in 52+ countries

Benchmarking

See How You Compare

Once you finish the test, your results will be compared with real-world data from people in your country.
Below is a preview of the benchmarks we use to place your score in context.

Autism Rating Scale for Children (ARSfC)

Average

41.3

Normal range

34.5 — 48.2

min.

max.

majority

This curve shows how scores are typically distributed.
Once you complete the test, your result will appear here so you can see where you land.

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CLEAR ANSWERS TO COMMON QUESTIONS

Frequently Asked Questions

Any questions left?

What is this scale used for?

It is a brief screening measure used to rate behaviors associated with autism in young children. Results indicate whether a full diagnostic evaluation may be needed.

Who is this scale intended for?

It is intended for toddlers and preschool-age children, typically ages 2 to 4 years. It may also be used when developmental level is similar to this age range.

What areas of behavior are rated?

Ratings cover social interaction, emotional expression, communication, and sensory responses. Observations focus on typical behavior across everyday situations.

How is the rating completed and how long does it take?

A trained professional completes the rating based on direct observation and/or a structured parent interview. Completion typically takes about 3 minutes.

Does this scale provide a diagnosis?

No, it does not establish a diagnosis. It supports identification of children who may require further assessment and follow-up.

WHAT THE TEST MEASURES

About This Assessment

Childhood Autism Rating Scale (CARS) Test

autism

This measure is used to support rapid, structured clinical impressions of autism-related behaviors in young children. The Childhood Autism Rating Scale (CARS) organizes observations and caregiver report into a standardized severity-oriented rating framework.

It consists of 15 items and is typically completed in about 3 minutes. Ratings reflect the clinician’s evaluation of behavior across domains such as social interaction, communication, emotional expression, and sensory responsiveness.

The Childhood Autism Rating Scale (CARS) is intended for screening and triage and does not, by itself, establish a diagnosis. Results are best interpreted in the context of comprehensive developmental history, direct observation, and other validated assessment procedures. Authorship is attributed to Barbara Rochen Renner.

Author: Barbara Rochen Renner, eric-schopler, robert-j-reichler

Literature: Schopler, E., Reichler, R. J., DeVellis, R. F., & Daly, K. Toward objective classification of childhood autism: Childhood Autism Rating Scale (CARS). Journal of Autism and Developmental Disorders. 1980.; Lord, C., Rutter, M., DiLavore, P. C., & Risi, S. Autism diagnostic observation schedule (ADOS) manual. Western Psychological Services. 2002.

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