The CAST (Childhood Asperger Syndrome Test) : test accuracy (691.7 kB) To view this document in your browser click here.   To download this document to your hard disk click here and: . choose the destination folder on your hard disk click Save to download the document to your hard disk How long will it take to download? Depending on the size of the document and the speed of your internet connection, this download may take anything from a couple of seconds to several minutes! What do I need to view a PDF document? You will need Adobe Acrobat Reader to view this document.