A.F.
Well D., since she can't write I would make her say I will not talk back in a corner for 15 minutes and increase it every time she continues by another 5 to ten minutes. Now that can be a bit annoying but once she starts getting tired of hearing herself say the same thing, she may stop. My mother would make us write/talk (depending on what it was) 100 times and increase it by another 100 if we kept doing it. Or start her off with saying it a certain amount of times and increase it by a certain amount if she continues.