PS. My sons hearing test conducted along with his speech therapy report showed that he has perfect 'hearing'. APD is a problem not with hearing but in processing speech from the CNS or brain and has more to do with 'proprioception' [which will explain his high score for perceptive reasoning] than with the actual ear-drum and function of the ear physiologically. Get a TEA-ch assessment done, because it might just be that he is not attending to the auditory part of the dual assessment on 'attention'. I suspect that is where you will find your answer.