We had a lot of "I know you heard me" in our house too. But now we know that our son really did not process what we were saying. He works with a speech therapist on hearing specific sounds and increases the background noise level each week. This is very helpful.
One thing that I think everyone should do is put on closed captioning on the TV. It will show her how much she is missing through hearing alone. It also retrains the brain to hear more. The Eides book has other helpful things to do too that do not require a speech therapist.
