Ditto geo.
Not only does the scoring software allow easy printouts of all the skill gaps, it includes arrows to the sold-separately intervention guide, which a sped school might actually own. Not something the WJ can do.
If they were questioning a math disability, then I would press for fluency testing to document. If they accept the disability, then it depends on whether you want that data for progress monitoring purposes. I'd prefer the WIAT for that, though, as the WJ has mixed operations, where the WIAT splits out +, -, and x.
Most kids take about an hour to complete the KM. Ask how long it took, and how much she needed to use scratch paper (when allowed). Also, older kids (third grade and up) can use the calculator on the same problem-solving subtest. (Sorry, can't remember her age.) If allowed, did she use it/was she offered it/them?
