Oh, this just makes me laugh and sigh:

"A further research paper indicated that the questionnaire could be used for screening in clinical practice, with scores less than 26 indicating that a diagnosis of Asperger syndrome can effectively be ruled out."

(Wikipedia)

Again, I scored DD at...27. (I intentionally scored "up" a bit, answering "strongly agree" or "strongly disagree" in some instances when it was more like like "agree"--they don't have that option on this one).