Gilliam Autism Rating Scale Second Edition. Eric Rozenblat, M.A., BCBA Caldwell College Assessment Project. Overview. Background of GARS II Changes from original GARS to GARS II Peer-reviewed literature about GARS Description/Administration of GARS II Scoring of GARS II
Gilliam Autism Rating Scale Second Edition
Eric Rozenblat, M.A., BCBA
Easy to administerGARS II not enough to DX
Takes little timeAnecdotal parent questionnaire
Good reliabilityLack of peer-reviewed research on GARSII
Good validityRaters may be subjective
Easy to computeExaminer may not administer test on own
Relation to ABADoes not describe environmental contingencies
Direct ObservationExaminer qualifications (need specialists in autism with license)
Easy to score
Uses DSM IV Definition
Large Normative Sample
American Psychiatric Association. (1994). Diagnostic and statistical manual of mental disorders (4th ed., text rev.). Washington, DC: Author.
Boggs, K.M., Gross, A.M., & Gohm, C.L. (2006). Validity of the Asperger Syndrome Diagnostic Scale. Journal of Developmental and Physical Disabilities, 18, 163-182.
Bruininks, R.H., Woodcock, R.W., Weatherman, R.F., & Hill, B.K. (1996). Scales of independent behavior-Revised: Manual. Boston: Riverside Publishing Company.
California Departments of Education and Developmental Services Collaborative Work Group on Autism Spectrum Disorders. (1997). Best practices for designing and delivering effective programs for individuals with autistic spectrum disorders. Available online at www.feat.org.
Eaves, R.C., Woods-Groves, S., Williams Jr., T.O., & Fall, A.M. (2006). Reliability and validity of the pervasive developmental disorders rating scale and the gilliam autism rating scale. Education and Training in Developmental Disabilities, 41, 300-309.
Filipek, P.A., Accardo, P.J., Baranek, G.T., Cook, E.H., Dawson, G. et al. (1999). The screening and diagnosis of autism spectrum disorders. Journal of Autism and Developmental Disorders, 29, 439-484.
Gilliam, J.E. (2006). Gilliam Autism Rating Scale. (2nd ed.). Austin, TX: PRO-ED.
Gilliam, J.E. (1995). Gilliam Autism Rating Scale. Austin, TX: PRO-ED.
Lecavalier, L. (2005). An evaluation of the gilliam autism rating scale. Journal of Autism and Developmental Disorders, 35, 795-805.
Lopez, B.R., Lincoln, A.J., Ozonoff, S., & Lai, Z. (2005). Examining the relationship between executive functions and restricted, repetitive symptoms of autistic disorder. Journal of Autism and Developmental Disorders, 35, 445-460.
South, M., Williams, B.J., McMahon, W.M., Owley, T., Filipek, P.A., Shernoff, E., Corsello, C., Lainhart, J.E., Landa, R., & Ozonoff, S. (2002). Utility of the gilliam autism rating scale in research and clinical populations. Journal of Autism and Developmental Disorders, 32, 593-599.
Walz, N.C. (2007). Parent reports of stereotyped behaviors, social interaction, and developmental disturbances in individuals with angelman syndrome. Journal of Autism and Developmental Disorders, 37, 940-947.