GARS-3

Gilliam Autism Rating Scale-Third Edition

By James E. Gilliam

Ages: 3;0- 21;11

SKU
TM838
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$185.00
The Gilliam Autism Rating Scale (Ages: 3;0- 21:11) is one of the most widely used instruments for the assessment of Autism Spectrum Disorder in the world. The GARS-3 assists teachers, parents, and clinicians in identifying autism in individuals and estimating its severity. Includes: Examiner's Manual, 50 Summary/Response Forms, and the Instructional Objectives manual. (2014)
The Gilliam Autism Rating Scale (Ages: 3;0- 21:11) is one of the most widely used instruments for the assessment of Autism Spectrum Disorder in the world. The GARS-3 assists teachers, parents, and clinicians in identifying autism in individuals and estimating its severity. Includes: Examiner's Manual, 50 Summary/Response Forms, and the Instructional Objectives manual. (2014)
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Author(s) James E. Gilliam
Topic Autism, SLP Resources, Social Skills, Special Educator Resources, Tests
Brand PRO-ED

GARS-3

  • Ages: 3;0-21;11
  • Testing Time: 5-10 minutes
  • Administration: Individual
  • Norm-referenced: standard scores, percentile ranks, severity level, and probability of Autism
  • GARS-3 Complete Kit Includes: Examiner’s Manual, 50 Summary/Response Forms, and the Instructional Objectives manual. (2014)
  • Qualification Level: B

The Gilliam Autism Rating Scale (GARS-3), now in its third edition, is one of the most widely used instruments for the assessment of Autism Spectrum Disorder in the world. The GARS-3 assists teachers, parents, and clinicians in identifying autism in individuals and estimating its severity. Items on the GARS-3 reflect the 2013 diagnostic criteria for Autism Spectrum Disorder adopted by the APA and published in the Diagnostic and Statistical Manual of Mental Disorders–Fifth Edition (DSM-5). The GARS-3 yields standard scores, percentile ranks, severity level, and probability of Autism.

This instrument consists of 56 clearly stated items describing the characteristic behaviors of persons with autism. GARS-3 includes six subscales: Restrictive/Repetitive Behaviors, Social Interaction, Social Communication, Emotional Responses, Cognitive Style, and Maladaptive Speech.

New Features of the GARS-3

  • Items and subscales reflect DSM-5 diagnostic criteria for Autism Spectrum Disorder.
  • Forty-four new items
  • All six subscales empirically determined to be valid and sensitive for identification of children with ASD.
  • Normative data (N = 1,859) collected in 2010 and 2011.
  • Demographic characteristics of the normative sample reflect those reported by U.S. Census Bureau, 2011.
  • An interpretation guide in the Examiner’s Manual allows the examiner an easy and efficient method for assessing the probability of autism spectrum disorder and the severity of the disorder.

Reliability and Validity

  • Internal consistency (content sampling) reliability coefficients for the subscales exceed .85 and the Autism Indexes exceed .93.
  • Test-retest (time sampling) reliability coefficients exceed .80 for subscales and .90 for the Autism Indexes.
  • Interrater reliability intraclass coefficients exceed .80 and .84 for the Autism Indexes.
  • Correlations of the GARS-3 scores with those of other well-known diagnostic tests for autism are large or very large in magnitude.
  • All new validity studies show that the test results are valid for a wide variety of subgroups, as well as for the general population.
  • Binary classification studies indicate that the GARS-3 is able to accurately discriminate children with autism spectrum disorder from children without autism (i.e., sensitivity = .97, specificity = .97, ROC/AUC = .93)
  • Confirmatory and exploratory factor analyses demonstrate the theoretical and empirical validity of the subscales.
  • Examiner’s Manual provides other validity evidence.
Customer Reviews
  1. I love the new hear...
    I love the new hear builder following directions and phonological awareness CD. The areas align with state standards. The graphics are wonderful and my students loved the demo. My students love chipper chat series and Auditory Memory for Quick Stories. We order most test products through Super Duper as well.

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  2. I love being able to...
    I love being able to get all of my therapy supplies in one place! You have such a broad range of products that can be used for the entire continuum of my students---everything from articulation to autism.

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  3. Love the social skills resources!...
    Love the social skills resources!

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  4. Love your products! I have...
    Love your products! I have never found more useful tools available in one place for my son with Autism. I just need to win lotto! LOL But in the meantime I hope to purchase one every month to utilise at home and school. Thanks for any awesome resource and products!

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  5. I would like to see...
    I would like to see a counselling section that includes anger management resources and grief. I enjoyed the social skills section the most.

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  6. As a mother of a...
    As a mother of a fourth-grader who has Asperger's, I particularly enjoy all of the games and social skills activities that you have available. All of your products appear to be so fun and enjoyable for the kids, that they probably don't even realize that they are picking up some very important life skills while they are playing them. That's important, because, after all, why shouldn't social skills games be just as entertaining as any childrens game? You guys obviously 'get' kids ---thanks!!!

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