We are looking to relocate, and the school we would like to send DS 4 to requires the SB-V, and WIAT. My first question is how likely is it that he will score 145 on the SB, if his FSIQ was 139 on the WPPSI. I think we are talking 99.9 percentile for the SB, where he scored 99.5 percentile on the WPPSI. His performance IQ was a full 20 points different than his verbal, so the woman at the school seemed to think that he would do better on the SB. I cannot find anything to back this up.

Also, how is the WIAT in comparison to the WJ-III? I think they are looking for 99.9 there too. My son, who was almost 4 at the time of testing had to be normed as a first grader because he was beyond the norms for K scoring, so I'm guessing he could pull off the 99.9 on that. My main concern is the SB-V.
One last question, when would you test? We are needing the testing for fall 2012 school entrance.
Thank you!