We've been asked by a local university if we can provide any papers or statistics that prove CART is a beneficial service, over and above other assistive technologies.
Does anyone have any idea if such information exists, and if so, where I could get it?
How about contacting CARTWheel. They are an organization of CART providers. I'm sure they may know someone to help you advocate for CART. http://www.cartwheel.cc/
Please update us too when you get any info from whatever source. I would love to hear what you find out on the subject.