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The Childhood Autism Spectrum Test, abbreviated as CAST and formerly titled the Childhood Asperger Syndrome Test, is a tool to screen for autism spectrum disorder in children aged 4–11 years, in a non-clinical setting. [1] It is also called the Social and Communication Development Questionnaire. [2]
The autism-spectrum quotient (AQ) is a questionnaire published in 2001 by Simon Baron-Cohen and his colleagues at the Autism Research Centre in Cambridge, UK.Consisting of fifty questions, it aims to investigate whether adults of average intelligence (defined as an IQ of 80 or higher by the questionnaire) have symptoms of autism spectrum conditions. [1]
The second edition, published in 2012, included updated norms, improved algorithms for Modules 1 to 3, and a new Toddler Module (T) for assessing children aged 12 to 30 months. [7] [8] The scoring algorithm was also revised to align with the recent changes in the DSM-5 diagnostic criteria. While the ADOS-G had separate sections for social and ...
The Gilliam Asperger's disorder scale (GADS) is a tool for assisting the diagnosis of Asperger syndrome. More specifically, it is a rating scale for behaviour, which can be used by either individuals or professionals, and is commonly used by school psychologists.
The Modified Checklist for Autism in Toddlers (M-CHAT) is a psychological questionnaire that evaluates risk for autism spectrum disorder in children ages 16–30 months. The 20-question test is filled out by the parent, and a follow-up portion is available for children who are classified as medium- to high-risk for autism spectrum disorder.
The Ritvo Autism & Asperger Diagnostic Scale (RAADS) is a psychological self-rating scale developed by Riva Ariella Ritvo (NPI UCLA and CSC Yale). An abridged and translated 14 question version was then developed at the Department of Clinical Neuroscience at the Karolinska Institute, to aid in the identification of patients who may have undiagnosed ASD.
The scale was designed to help differentiate children with autism from those with other developmental delays, such as intellectual disability. Although there is no gold standard among rating scales in detecting autism, CARS is frequently used as part of the diagnostic process. [1]
Research comparing ADI-R results of autistic children and children with other developmental disorders suggested that individual questions on the interview were slightly more valid when discriminating autism from intellectual disability than the algorithm as a whole. However, further research has led to overall acceptance of the ADI-R algorithm. [3]