We have one ox in our local school. We plan to place it with a special-needs student for the summer then, based on his experience, try to demonstrate its value and raise funds for more units for our school and beyond. In order to solicit these funds, we would like to give the pilot student a "before" and "after" evaluation in order to have concrete proof of the value of the unit to him. Has anyone developed such a test/evaluation system? We would love to not have to reinvent the wheel, but feel for the type of donors we are aproaching, we need more than anecdotal evidence. Thanks for any advice or suggestions!