I see from other posts you have a speech therapist appointment lined up, that's good. One thing I'll say, I was your daughter's age when I started stuttering. I'm 33 now and still stutter. I didn't get anything close to proper speech therapy until I was in my mid 20s, and it was the only thing that ever helped. If your daughter doesn't grow out of it, be wary of telling her, or other people telling her, that she will. I was constantly told that growing up and I kept looking forward to that glorious day when I'd be able to speak normally... and it never came. It did as much damage as most bullying I encountered ever did.