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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 first section of the M-CHAT identifies 20 behavioral characteristics of the autism spectrum and asks if the child has experienced any of them. If the parent reports a sufficient number of characteristics for the child in this section, a follow-up form outlining specific questions pertaining to that characteristic would be administered by the researcher.
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 ...
Administering the test takes 10 minutes. [3] The scale is available in forms for teachers as well as parents, and like the Gilliam Autism Rating Scale it is comparatively less complicated to administer and score than other tests such as the Autism Diagnostic Observation Schedule or the Autism Diagnostic Interview — Revised (although both of ...
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.
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]
Autistic infants show less attention to social stimuli, smile and look at others less often, and respond less to their own name. Autistic toddlers differ more strikingly from social norms; for example, they have less eye contact and turn-taking, and do not have the ability to use simple movements to express themselves, such as pointing at ...