Note: The majority of the tasks in both the WJ math cluster and KeyMath are read aloud to the student. For each one, only the pure computation tasks are read by the student. On KeyMath, that would be Addition & Subtraction and Multiplication & Division. On WJ, they would be Calculation and Math Fluency. (Likewise the WIAT.) So read-aloud would make little difference on subtests other than those specific ones.
Another TOL (testing of limits) that one could try on an alternate form would be to allow calculator use on normally-non-calculator subtests, to try to separate reasoning skills even further from calculation skills. One way to do this is to administer the problem-solving subtest as usual, without calculator, then re-administer the same subtest, with calculator allowed. Of course, this is only useful if the student is comfortable with a calculator.
