Do you think her strengths are mostly visual/spatial? See http://www.gifteddevelopment.com/Visual_Spatial_Learner/vsl.htm It could be that this test was not really testing her strengths. I have read that the SB-5 is more oriented toward visual/spatial abilities and does not have time pressure.

I believe that a standard deviation on the WISC-IV is 15pts. So two standard deviations from the mean would be 130.

I hope this helps!

Cathy