I'm actually a little confused about what processing speed really means. DD learns fast but her work tempo is slow. Her memorization skills are incredible, but she is absentminded and off task more often than I'd like. It takes her forever to get out of the house, but she always completes tests on time. She goes off on tangents but is highy accurate. She reads very fast with great comprehension, but takes a while to produce beautiful writing. So...?? (I have no numbers for her on processing speed as she took the RIAS.)