Overall, his achievement scores look fairly consistent with his SBV cognitive scores, with the obvious possible exception of Numerical Operations. I will note, though, that it is possible for a mere two additional items correct to take a nine-year-old from 144 to 160, and that it is also possible to score 160 without knowing anything beyond arithmetic operations on fractions, which I would imagine he has learned, if he has completed grade 5 math. So the significance of his 160 depends on whether he obtained it with the minimum necessary raw score for a SS 160, or something above that.
Between 5-10% of the standardization population had the difference between MPS and NO that he had, which would be moderately rare. Also, BTW, his Mathematics Composite is 153.
Do you have any other information from his classroom teachers or himself that suggests that his math acceleration is insufficient?
