CARS test scores

Does anyone know how they score/rate the CARS test for autism spectrum disorders? I highly suspect my 5yr old daughter is an aspie or HFA...she was previously DX'ed with ADHD-combined, ODD, generalized anxiety disorder, OCD, & mild verbal apraxia. At her last eval she was given the CARS test...her score was 28 (according to the report 29+ is considered ASD)...she was given the additional DX of ''disorder of infancy, childhood, or adolescence NOS''. I'm curious how they determine the scores for this test? They did observation of her in a group setting but the therapist who did the observation only stayed about 5 mins (I was told by the teacher)...would an inacurate observation affect her scoring?

[AUSTIN431]

ok here it goes they test on fifteen items the scores range from 1 normal to 4 severely abnormal thirty would put her on the mild end of the autism spectrum here are the subjects                                                                                                                      1 relationship to people,2 imitation,3 emotional response,4 body use,5 object use
6 adaptation to change,7 visual response,8 listening response,9 taste-smell-touch response and use,10 fear and nervousness,11 verbal communication,12 non-verbal communication
13 activity level,14 level and consistency of intellectual response,15 general impressions             I hope this helps