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Gilliam Autism Rating Scale | Third Edition

GARS-3
  • James E. Gilliam

Gilliam Autism Rating Scale | Third Edition (GARS-3) 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.

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  • GARS-3 Complete Kit in Box
    13780DR Niveau de Qualification A

    Includes Examiner's Manual, 50 Summary/Response Booklets, and Instructional Objectives Manual

    $332.20

  • GARS-3 Examiner Manual
    13781DR Niveau de Qualification A

    $149.40

  • GARS 3 Summary-Response Form
    13783DR Niveau de Qualification A

    Pkg of 50

    $121.00

Aperçu

Date de publication:
2013
Groupe d’âge:
Individuals 3–22 years old
Niveau de qualification:
B
Temps de passation:
5–10 minutes
Passation:
Paper-and-pencil
Options de notation:
Manual scoring

Détails du Produit

The GARS-3 yields standard scores, percentile ranks, severity level, and probability of autism. Items on the GARS-3 are based on the 2013 diagnostic criteria for autism spectrum disorder adopted by the APA.

Benefits

  • Correlates with other well-known diagnostic tests for autism at magnitude large or very large.
  • Includes all new validity studies that show test results are valid for a wide variety of subgroups, as well as for the general population.
  • Accurately discriminates children with autism spectrum disorder from children without autism (sensitivity = .97, specificity = .97, ROC/AUC = .93).
  • 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.

Features

The instrument consists of 56 items grouped into six subscales: Restrictive/Repetitive Behaviors, Social Interaction, Social Communication, Emotional Responses, Cognitive Style, and Maladaptive Speech.

  • Includes four new items.
  • All six subscales have been empirically determined to be valid and sensitive for identification of children with ASD.
  • An interpretation guide provides the examiner with an easy and efficient method for assessing the probability and severity of autism spectrum disorder.
  • A diagnostic validation form is included to ensure test results meet DSM-5 criteria for autism spectrum disorder.
  • Demographic characteristics of the normative sample are keyed to those reported by U.S. Bureau of the Census in 2011.