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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 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.
Asperger syndrome (AS), also known as Asperger's syndrome or Asperger's, is a diagnostic label that has historically been used to describe a neurodevelopmental disorder characterized by significant difficulties in social interaction and nonverbal communication, along with restricted, repetitive patterns of behavior and interests. [5]
An optional additional sub-scale of eight items, Early Development, can also be included. [1] The rating scores on each of the sub-scales are combined by simple summation to form an overall score, the Asperger's disorder quotient. [1] Administering the test takes 10 minutes. [3]
Autism spectrum disorder [a] (ASD), or simply autism, is a neurodevelopmental disorder "characterized by persistent deficits in social communication and social interaction across multiple contexts" and "restricted, repetitive patterns of behavior, interests, or activities". [11]
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 term Asperger syndrome typically excluded a general language delay. [19] Other differences noted in features of high-functioning autism and Asperger syndrome included the following: [12] [20] [21] [22] Lower verbal reasoning ability; Better visual/spatial skills (Being uniquely artistically talented) Less deviating locomotion (e.g. clumsiness)