I wouldn't use a lower comprehension score alone as a suggestion of ASD. My youngest has twice been tested on the WISC and both times had much lower comprehension scores (4-7 raw points below the other two scores). She's actually very socially aware (probably too much so) but she has unusual ways of approaching things that might have lowered that score. If you have other reasons to suspect ASD, that's another story, though.
eta: I'm no ASD expert and, FWIW, my dd has an ADD and anxiety disorder dx and her comp scores were 15 and 12 on her two WISC testings so they weren't, technically, low, just a lot lower than the other two scores. Maybe it is only a red flag for ASD when it falls below average.
The lower vocab score is an interesting one. I do wonder if the tester played into that. Would it be possible for whomever is doing further evaluating for Asperger's to give him another brief assessment that might hit on some similar areas? Maybe the RIAS? Given his stronger LA achievement scores, the VCI scores seem a little odd.
Last edited by Cricket2; 04/06/11 11:58 AM.