Childhood Autism Rating Scale(CARS)

March 27th, 2007

Childhood Autism Rating Scale (CARS) is a test combining parent reports and direct observation by the professional.The test helps to identify and diagnose autism in individuals ages 3 through 22 years and to estimate the severity of the disorder. The entire scale can be completed in 20-30 minutes. Published in 1980 (Schopler et al., 1980), the CARS was originally correlated to the DSM-III and then to the DSM-III-R.Standard scores and percentiles are provided, as well as a table for determining the likelihood that a child is autistic and the severity of the disorder.
The 15 items of the CARS include: Relationships with People, Imitation, Affect, Use of Body, Relation to Non-human Objects, Adaptation to Environmental Change, Visual Responsiveness, Auditory Responsiveness, Near Receptor Responsiveness, Anxiety Reaction, Verbal Communication, Nonverbal Communication, Activity Level, Intellectual Functioning, and the clinician’s general impression.
The CARS was the only autism assessment instrument reviewed that combines both historical information from a parent and direct observation of the child by the professional. The CARS also provides a total score that can rate the severity of behavior.

Evidence Ratings: [A] = Strong [B] = Moderate [C] = Limited [D1] = Opinion/No evidence meeting criteria [D2] = Literature not reviewed

Pervasive Developmental Disorder and Autism Symptoms</strong>
Screening Tool / Rating ScaleFor Ages (Years) Who Completes Checklist: Number of Items

Time to Complete (Minutes) View Free Online
Childhood Autism Test (CHAT)1.5 +Parent: 9 Clinician: 5 5YES
Autism Screening Instrument for Educational Planning (ASIEP-2) 1.5+ Clinician: 5 subtests 90-120
Autism Diagnostic Interview-Revised (ADI-R) 2+ Clinician: 93 90-150
Autism Diagnostic Observation Schedules (ADOS)\ 2+ Clinician: 4 modules 35-40 min/module
Childhood Autism Rating Scale (CARS) 2+ Clinician: 15
Autism Behavior Checklist (ABC)3+ Parent, Teacher: 57
Gilliam Autism Rating Scale (GARS)3-22 Parent, Teacher, Clinician: 56 5-10 YES
Autism Research Institute’s Form E-2 Checklist3-5 Parent: 109 15-20 YES
Social Communication Questionnaire (SCQ)4+ Parent: 40 10
Autism Treatment Evaluation Checklist (ATEC): Internet Scoring Program?? 5-12 Parent, Clinician: 77 10-15 YES
PDD Assessment Scale (PDDAS)6-12 Parent: 15 5-10 YES
<strong>Asperger’s Disorder Symptoms</strong>
Screening Tool / Rating Scale For Ages (Years)Who Completes Checklist: Number of Items Time to Complete (Minutes)Gilliam Asperger’s Disorder Scale (GADS) 3-22 Clinician: 32 10
Childhood Asperger Syndrome Test (CAST)4-11 Parent: 38 YES
Asperger Syndrome Diagnostic Scale (ASDS) 5-18 Clinician: 50 10-15
Krug Asperger’s Disorder Index (KADI) 6-22 Clinician: 32 15-20
Australian Scale for Asperger’s Syndrome 6-12 Clinician: 25 5-10 YES</p>

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