The Supports Intensity Scale-Adult Version® (SIS-A®) is a standardized, norm-referenced measure of the intensity of support needs for adults with intellectual and developmental disabilities (IDD). 

The purpose of the User’s Manual is to enable users to administer and score the SIS-A with fidelity, and to interpret and use findings from the SIS-A in ways that will enhance planning processes and outcomes for adults with IDD.


International purchases of SIS-A products cannot be made online. International customers interested in purchasing SIS-A products need to contact Ajith Mathew at ajith@aaidd.org. Do not place your order online.