Hi,
I do believe that a CARS score can change over time, both with maturity and early intervention. My son scored a 36, which places him "one Point" into the moderate range. The thing to take into consideration is: Testing is only a window in time. A child may not be at "peak performance" during the actual
test. I really believe that, and even the service coordinator who met with me before all the evals, told me those exact words, so I always try to keep that in mind.
I think that my son has improved in so many ways since he started ABA, and all his therapies 6 months ago!! I am sure that when I retest him next year, that I will see a lower test score. Another test that you can take for your records is available on line , free of charge, from the Autism Research Institute. If you sign on the website, you could request the "E-2" Autism
Checklist, which you can print out, and send in to them. They will send it back to you with a score, and ask to you to retake the test when your child is five. It's just good to have for your own records.
Good Luck!!