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Autism Screening and Assessment Evaluations

Public schools are required by law to identify all children with disabilities, including those with autism spectrum disorder (AU) (IDEA, 2004). Early identification is key because early treatment leads to better outcomes (Dawson & Osterling, 1997; Eikeseth, Smith, Jahr, & Eldevik, 2007). Although it is often difficult to suggest to staff and parents that a child may have autism spectrum disorder, there is a significant risk associated with failing to recognize the disorder and provide intervention when it is present.

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Asperger Syndrome Diagnostic Scale (ASDS)

The Asperger Syndrome Diagnostic Scale (ASDS; Myles, Bock, & Simpson, 2001) is a norm- referenced measure consisting of 50 yes/no items.

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Autism Behavior Checklist (ABC)

The Autism Behavior Checklist (ABC; Krug, Arick, & Almond, 2008) is a 57-item questionnaire to be completed by parents or teachers.

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Autism Diagnostic Interview – Revised (ADI-R)

The Autism Diagnostic Interview™ – Revised (ADI™-R; Rutter, LeCouteur, & Lord, 2003) is the 2003 revision of the ADI™.

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Autism Diagnostic Observation Schedule – Second Edition (ADOS-2)

The Autism Diagnostic Observation Schedule – Second Edition (ADOS-2) is an updated, semi-structured, standardized observational assessment tool designed to assess autism spectrum disorders in children, adolescents, and adults (Lord, Rutter, DiLavore, Risi, Gotham, & Bishop, 2012).

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Autism Observation Scale For Infants (AOSI)

The Autism Observation Scale (AOSI; Bryson, McDermott, Rombough, Brian, & Zwaigenbaum, 2000) is a semi-structured, play-based measure designed to identify early signs of autism in high-risk infants (i.e., those who have an older sibling with autism).

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Autism Screening Instrument For Educational Planning – Third Edition (ASIEP-3)

The Autism Screening Instrument For Educational Planning – Third Edition (ASIEP-3; Krug, Arick, & Almond, 2008) was developed to evaluate autism spectrum disorders and assist in developing and monitoring educational programs for individuals on the spectrum.

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Autism Spectrum Quotient (AQ)

The Autism-Spectrum Quotient (AQ) is a parent questionnaire designed to identify the presence of the characteristics of autism spectrum disorders. There are currently two versions of the Autism-Spectrum Quotient: the school-age adolescent version (AQ-Adol; Baron-Cohen, Hoekstra, Knickmeyer, & Wheelwright, 2006) and the children’s version (AQ-Child; Auyeung, Baron-Cohen, Wheelwright, & Allison, 2008).

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Checklist for Autism Spectrum Disorder (CASD)

The Checklist for Autism Spectrum Disorder (CASD; Mayes, 2012) is a diagnostic and screening tool.

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Childhood Autism Rating Scale™ – Second Edition (CARS-2)

The purpose of the Childhood Autism Rating Scale™ – Second Edition (CARS™-2; Schopler, Van Bourgondien, Wellman, & Love (2010) is to identify the presence of autism in children and to determine the severity of symptoms.

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Childhood Autism Spectrum Test (CAST)

The Childhood Autism Spectrum Test (CAST; Scott, Baron-Cohen, Bolton, & Brayne, 2002) (formerly known as the Childhood Asperger Syndrome Test)

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Developmental Behavior Checklist – Autism Screening Algorithm (DBC-ASA)

The Developmental Behavior Checklist – Autism Screening Algorithm (DBC-ASA: Brereton, Tonge, Mckinnon, & Einfeld, 2002) is an autism screening instrument derived from the Developmental Checklist Parent/Primary Caregiver Report (DBC-P).

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Developmental Behaviour Checklist – Early Screen (DBC-ES)

The Developmental Behaviour Checklist – Early Screen (DBC-ES; Gray & Tonge, 2005)

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Early Screening of Autistic Traits (ESAT)

The Early Screening of Autistic Traits (ESAT; Swinkels et al., 2006) is a 14-item screening checklist for parents/caregivers.

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Gilliam Asperger’s Disorder Scale (GADS)

The Gilliam Asperger’s Disorder Scale (GADS; Gilliam, 2001) is a 32-item questionnaire designed to identify individuals with Asperger’s Disorder.

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Gilliam Autism Rating Scale (GARS)

The Gilliam Asperger’s Disorder Scale (GADS; Gilliam, 2001) is a 32-item questionnaire designed to identify individuals with Asperger’s Disorder.

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Krug Asperger’s Disorder Index (KADI)

The Krug Asperger’s Disorder Index (KADI; Krug & Arick, 2003) is a screening instrument for Asperger Syndrome.

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Modified Checklist For Autism In Toddlers, Revised With Follow-Up (MCHAT-R/F)

The Modified Checklist for Autism in Toddlers, Revised with Follow-Up (MCHAT-R/F; Robbins, Fein, & Barton, 2009), designed to screen for autism in toddlers from 16 to 30 months, was developed for use during well-child checkups.

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Monteiro Interview Guidelines for Diagnosing Asperger’s Syndrome (MIGDAS)

The Monteiro Interview Guidelines for Diagnosing Asperger’s Syndrome (MIGDAS; Monteiro, 2008) is a qualitative assessment tool designed for use by school-based evaluation teams to assess Asperger Syndrome in children and adolescents.

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Parent’s Observations of Social Interactions (POSI)

The Parent’s Observations of Social Interactions (POSI; The SWYC.org, 2015) is a seven-item screening instrument for autism spectrum disorders (ASD).

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Pervasive Developmental Disorders Screening Test – Second Edition (PDDST-II)

The Pervasive Developmental Disorders Screening Test – Second Edition (PDDST-II; Siegel, 2004) is a questionnaire designed to screen for autism in young children from 12 to 48 months of age.

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Screening Tool For Autism in Two-Year-Olds (STAT™)

The Screening Tool for Autism in Two-Year-Olds (STAT™; Stone, Coonrod, & Ousley, 2000) is an instrument for screening for autism in children between the ages of 24 and 36 months.

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Social Communication Questionnaire (SCQ)

The Social Communication Questionnaire (SCQ; Rutter, Bailey, Lord, & Berument, 2003) is an instrument for screening for autism in individuals over the age of 4 with a mental age over 2 years.

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