|Application||The questionnaire was developed by the Autism Research Centre at the University of Cambridge, for assessing the severity of autism spectrum symptoms in children.|
|Composition||The Childhood Autism Spectrum Test or CAST (formerly the “Childhood Asperger’s Syndrome Test”) is a 39-item, yes or no evaluation aimed at parents.|
|Scoring||Scores are calculated by adding up items. Higher scores indicate more symptoms. Scores can range between 0-31.|
|General||Cut-off point is currently set at 15, implying possible ASD or related social-communication difficulties.|
JG Williams, C Allison, FJ Scott, PF Bolton, S Baron-Cohen, FE Matthews, C Brayne. The CAST (Childhood Asperger Syndrome Test): Test Accuracy. 9(1): Autism 45-68. 2004.