Zigner
Senior Member, Non-Attorney
Strange thing is...as a father of 3 children diagnosed with ADD (and other conditions) and also as an "undiagnosed" ADD individual, test taking has always been an absolute breeze. In my college classes, I would almost always sit for several minutes AFTER finishing my tests/finals in order to allow others to turn their papers in first.
My children are similar, and others I know who have children with ADD report the same thing about their children.
Of course, this is anecdotal. However, I would suggest that you put less energy in to finding a way to change the rules for your finals and more energy in to making sure you know your stuff.