Neuropsychologists call for elimination of race-norming in clinical tests following NFL concussion controversy Thursday, December 2 by ABC News(NEW YORK) -- The American Academy of Clinical Neuropsychologists (AACN), the professional organization that sets standards and practices for the field of neuropsychology, has called for "the elimination of race as a variable in demographically-based normative test interpretation," the controversial practice widely known as... Read More.