Childhood Asperger Syndrome Test

The Childhood Asperger Syndrome Test (CAST; Williams et al, 2005,2006; Allison et al, 2007) is a brief 37 item screening checklist for High Functioning Autism, for completion by parents. It preceded the ASSQ-REV, and is included here mainly as a shorter alternative. However the ASSQ-REV has stronger psychometric operating features. The version of CAST provided here has also been reconfigured from 3 point to 5 point Likert scaling, to facilitate enhanced observer discriminability. Normally the ASSQ-REV will be the instrument of choice.