There should be a Quantitative subest on the CogAT as well. Did they give you that? I would assume that the quantitative portion was somewhat lower since the composite percentile is below both the nonverbal and verbal scores. Still, it should be maybe in the 80s or close to the 90th percentile for quantitative, I'd venture to guess.
Also, were the CogAT score percentiles for her grade level or age? The age percentiles are the ones that would correlate more with IQ. Still, again unless she is really old for grade, I would expect that her age percentile would be well above the WISC scores.
What test were those achievement score from? The CogAT doesn't have an achievement component.
