Sorry if I'm not using the terminology correctly. What I was trying to say was that they asked almost entirely addition and subtraction questions and then decided that she was just above grade level. If they had asked questions about fractions, multiplication, division, or geometry, they would have discovered she is well above grade level.
They did the same thing with reading: don't give a student the chance to show higher proficiency, and you effectively cap the level a student can be 'assessed' at.