I agree with JGrubb. As the parent of a child with other abilities that warranted an IEP, I walked a fine line. On one side I didn’t want my child treated differently because of the other abilities and on the other side I was asking schools to treat him differently for that same reason. What JGrubb has described is a Universal Design for Learning approach that can level the playing field for all students. However, I would first advocate for a pre-test to determine if all the students understand the concepts to be presented on the test. If the results of the pre-test determined that my child was an outlier, I would consider his other ability (ADHD) and request individualized 1:1 or small group instruction with the test given immediately after instruction.