Thanks for the feedback. The number of unique words you use and the rate at which you speak contribute to the fluency score. I'm a little reluctant to give the

Thanks for the feedback. The number of unique words you use and the rate at which you speak contribute to the fluency score. I'm a little reluctant to give the full equation, because it prevents us from trying to game it. That's useful feedback on pointers for improvement - I'll see what can be done.